/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 4: b is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 0 0 | | 0 0 0 0 | \ / q is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 0 0 | | 0 0 0 0 | \ / p is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 0 1 | | 0 0 0 0 | \ / 0 is interpreted by / \ | 1 0 1 0 | | 0 1 0 0 | | 0 0 0 0 | | 0 1 0 0 | \ / 1 is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 0 0 | | 0 0 0 0 | \ / Remains to prove termination of the 5-rule system { b q b -> b p b , 1 p 1 ->= q , 0 q 0 ->= q , 1 q 1 ->= q , p ->= 1 p 1 0 1 } Applying context closure of depth 1 in the following form: System R over Sigma maps to { fold(xly) -> fold(xry) | l -> r in R, x,y in Sigma } over Sigma^2, where fold(a_1,...,a_n) = (a_1,a_2)...(a_{n-1}a_{n}) Remains to prove termination of the 125-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, p] [p, 1] [1, b] ->= [b, q] [q, b] , [b, 0] [0, q] [q, 0] [0, b] ->= [b, q] [q, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 0] [0, q] [q, 0] [0, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, p] [p, 1] [1, p] ->= [b, q] [q, p] , [b, 0] [0, q] [q, 0] [0, p] ->= [b, q] [q, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, p] [p, p] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 0] [0, q] [q, 0] [0, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, p] [p, 1] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 0] [0, q] [q, 0] [0, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [b, p] [p, 0] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 0] [0, q] [q, 0] [0, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 0] [0, q] [q, 0] [0, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, p] [p, p] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 0] [0, q] [q, 0] [0, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [q, p] [p, 0] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, p] [p, 1] [1, b] ->= [p, q] [q, b] , [p, 0] [0, q] [q, 0] [0, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, p] [p, b] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 0] [0, q] [q, 0] [0, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, p] [p, q] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 0] [0, q] [q, 0] [0, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, p] [p, p] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 0] [0, q] [q, 0] [0, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, p] [p, 1] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 0] [0, q] [q, 0] [0, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [p, p] [p, 0] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 0] [0, q] [q, 0] [0, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 0] [0, q] [q, 0] [0, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, p] [p, p] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 0] [0, q] [q, 0] [0, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [1, p] [p, 0] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 0] [0, q] [q, 0] [0, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, p] [p, b] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 0] [0, q] [q, 0] [0, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, p] [p, q] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 0] [0, q] [q, 0] [0, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, p] [p, p] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 0] [0, q] [q, 0] [0, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, p] [p, 1] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 0] [0, q] [q, 0] [0, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] , [0, p] [p, 0] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: [b, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 0] is interpreted by / \ | 1 1 | | 0 1 | \ / [0, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / Remains to prove termination of the 120-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, p] [p, 1] [1, b] ->= [b, q] [q, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, p] [p, 1] [1, p] ->= [b, q] [q, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, p] [p, p] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, p] [p, 1] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [b, p] [p, 0] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 0] [0, q] [q, 0] [0, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 0] [0, q] [q, 0] [0, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, p] [p, p] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 0] [0, q] [q, 0] [0, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [q, p] [p, 0] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, p] [p, 1] [1, b] ->= [p, q] [q, b] , [p, 0] [0, q] [q, 0] [0, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, p] [p, b] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 0] [0, q] [q, 0] [0, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, p] [p, q] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 0] [0, q] [q, 0] [0, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, p] [p, p] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 0] [0, q] [q, 0] [0, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, p] [p, 1] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 0] [0, q] [q, 0] [0, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [p, p] [p, 0] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 0] [0, q] [q, 0] [0, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 0] [0, q] [q, 0] [0, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, p] [p, p] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 0] [0, q] [q, 0] [0, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [1, p] [p, 0] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 0] [0, q] [q, 0] [0, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, p] [p, b] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 0] [0, q] [q, 0] [0, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, p] [p, q] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 0] [0, q] [q, 0] [0, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, p] [p, p] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 0] [0, q] [q, 0] [0, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, p] [p, 1] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 0] [0, q] [q, 0] [0, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] , [0, p] [p, 0] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: [b, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, b] is interpreted by / \ | 1 1 | | 0 1 | \ / [1, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / Remains to prove termination of the 116-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, p] [p, 1] [1, b] ->= [b, q] [q, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, p] [p, 1] [1, p] ->= [b, q] [q, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, p] [p, p] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, p] [p, 1] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [b, p] [p, 0] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 0] [0, q] [q, 0] [0, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, p] [p, p] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 0] [0, q] [q, 0] [0, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [q, p] [p, 0] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, p] [p, 1] [1, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, p] [p, b] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 0] [0, q] [q, 0] [0, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, p] [p, q] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 0] [0, q] [q, 0] [0, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, p] [p, p] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 0] [0, q] [q, 0] [0, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, p] [p, 1] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 0] [0, q] [q, 0] [0, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [p, p] [p, 0] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 0] [0, q] [q, 0] [0, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, p] [p, p] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 0] [0, q] [q, 0] [0, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [1, p] [p, 0] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, p] [p, b] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 0] [0, q] [q, 0] [0, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, p] [p, q] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 0] [0, q] [q, 0] [0, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, p] [p, p] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 0] [0, q] [q, 0] [0, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, p] [p, 1] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 0] [0, q] [q, 0] [0, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] , [0, p] [p, 0] ->= [0, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: [b, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, p] is interpreted by / \ | 1 1 | | 0 1 | \ / [p, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / Remains to prove termination of the 107-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, p] [p, 1] [1, b] ->= [b, q] [q, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, p] [p, 1] [1, p] ->= [b, q] [q, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, p] [p, p] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, p] [p, 1] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [b, p] [p, 0] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, p] [p, p] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 0] [0, q] [q, 0] [0, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [q, p] [p, 0] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, p] [p, 1] [1, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, p] [p, b] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 0] [0, q] [q, 0] [0, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, p] [p, q] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, p] [p, p] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 0] [0, q] [q, 0] [0, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, p] [p, 1] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 0] [0, q] [q, 0] [0, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [p, p] [p, 0] ->= [p, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, p] [p, p] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 0] [0, q] [q, 0] [0, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [1, p] [p, 0] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 0] [0, q] [q, 0] [0, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 0] [0, q] [q, 0] [0, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 0] [0, q] [q, 0] [0, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: [b, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, p] is interpreted by / \ | 1 1 | | 0 1 | \ / [1, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / Remains to prove termination of the 99-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, p] [p, 1] [1, b] ->= [b, q] [q, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, p] [p, 1] [1, p] ->= [b, q] [q, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, p] [p, 1] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [b, p] [p, 0] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 0] [0, q] [q, 0] [0, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [q, p] [p, 0] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, p] [p, 1] [1, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 0] [0, q] [q, 0] [0, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 0] [0, q] [q, 0] [0, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 0] [0, q] [q, 0] [0, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 0] [0, q] [q, 0] [0, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [1, p] [p, 0] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 0] [0, q] [q, 0] [0, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 0] [0, q] [q, 0] [0, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 0] [0, q] [q, 0] [0, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: [b, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 0] is interpreted by / \ | 1 1 | | 0 1 | \ / [p, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / Remains to prove termination of the 93-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, p] [p, 1] [1, b] ->= [b, q] [q, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, p] [p, 1] [1, p] ->= [b, q] [q, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, p] [p, 1] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [b, p] [p, 0] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [q, p] [p, 0] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, p] [p, 1] [1, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 0] [0, q] [q, 0] [0, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 0] [0, q] [q, 0] [0, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [1, p] [p, 0] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: [b, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [b, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, b] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, q] is interpreted by / \ | 1 0 | | 0 1 | \ / [q, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, p] is interpreted by / \ | 1 0 | | 0 1 | \ / [1, 1] is interpreted by / \ | 1 0 | | 0 1 | \ / [0, 0] is interpreted by / \ | 1 0 | | 0 1 | \ / [p, 0] is interpreted by / \ | 1 1 | | 0 1 | \ / Remains to prove termination of the 88-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, p] [p, 1] [1, b] ->= [b, q] [q, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, p] [p, 1] [1, p] ->= [b, q] [q, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, p] [p, 1] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, p] [p, 1] [1, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 87-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, p] [p, 1] [1, p] ->= [b, q] [q, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, p] [p, 1] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, p] [p, 1] [1, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 86-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, p] [p, 1] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, p] [p, 1] [1, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 3: [b, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 1 | | 0 1 0 | | 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 1 0 | \ / [1, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / Remains to prove termination of the 85-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, p] [p, 1] [1, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 84-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, p] [p, 1] [1, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 83-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, p] [p, 1] [1, 0] ->= [p, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 82-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, p] [p, b] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 3: [b, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 1 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 1 | | 0 1 0 | | 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / Remains to prove termination of the 81-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, p] [p, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 80-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, p] [p, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 79-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, p] [p, 1] [1, 0] ->= [0, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 78-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 1] ->= [b, q] [q, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 77-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, p] [p, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 76-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, p] [p, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 75-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, p] [p, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 74-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, p] [p, 1] [1, p] ->= [1, q] [q, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 73-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 1] [1, p] [p, 1] [1, 1] ->= [1, q] [q, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 72-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, p] [p, b] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 3: [b, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 1 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 1 | | 0 1 0 | | 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 1 | | 0 1 0 | | 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / Remains to prove termination of the 71-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, p] [p, q] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 3: [b, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 1 | | 0 1 0 | | 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 1 0 | \ / [1, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 1 0 | \ / [q, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 | | 0 1 0 | | 0 0 0 | \ / Remains to prove termination of the 70-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, p] [p, 1] [1, p] ->= [q, q] [q, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 1 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 69-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, p] [p, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 1 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 68-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, p] [p, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 67-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, p] [p, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 66-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 1] [1, p] [p, 1] [1, 1] ->= [q, q] [q, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 1 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 65-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, 1] [1, q] [q, 1] [1, b] ->= [b, q] [q, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, q] [q, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, 1] [1, q] [q, 1] [1, p] ->= [b, q] [q, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, q] [q, 1] [1, 1] ->= [b, q] [q, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [b, 1] [1, q] [q, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 9: [b, b] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 1 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 1 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 1 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 1 | | 0 0 0 0 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 1 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 1 0 0 1 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 1 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 1 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 1 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 1 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 2 0 0 0 1 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 1 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 1 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 0 0 0 0 | | 0 1 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | | 0 0 0 0 0 0 0 0 0 | \ / Remains to prove termination of the 60-rule system { [b, b] [b, q] [q, b] [b, b] -> [b, b] [b, p] [p, b] [b, b] , [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 59-rule system { [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, b] [b, q] [q, b] [b, 0] -> [b, b] [b, p] [p, b] [b, 0] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 58-rule system { [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, b] [b, q] [q, b] [b, b] -> [0, b] [b, p] [p, b] [b, b] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 57-rule system { [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, b] [b, q] [q, b] [b, 0] -> [0, b] [b, p] [p, b] [b, 0] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 56-rule system { [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, b] [b, q] [q, b] [b, q] -> [b, b] [b, p] [p, b] [b, q] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, b] [b, q] [q, b] [b, p] -> [b, b] [b, p] [p, b] [b, p] , [b, b] [b, q] [q, b] [b, 1] -> [b, b] [b, p] [p, b] [b, 1] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 53-rule system { [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, b] [b, q] [q, b] [b, q] -> [0, b] [b, p] [p, b] [b, q] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, b] [b, q] [q, b] [b, p] -> [0, b] [b, p] [p, b] [b, p] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, b] [b, q] [q, b] [b, 1] -> [0, b] [b, p] [p, b] [b, 1] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 1 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 50-rule system { [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [q, b] [b, q] [q, b] [b, b] -> [q, b] [b, p] [p, b] [b, b] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, b] [b, q] [q, b] [b, b] -> [p, b] [b, p] [p, b] [b, b] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, b] [b, q] [q, b] [b, b] -> [1, b] [b, p] [p, b] [b, b] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 1 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 1 0 1 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 47-rule system { [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, b] [b, q] [q, b] [b, 0] -> [q, b] [b, p] [p, b] [b, 0] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, b] [b, q] [q, b] [b, 0] -> [p, b] [b, p] [p, b] [b, 0] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, b] [b, q] [q, b] [b, 0] -> [1, b] [b, p] [p, b] [b, 0] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 1 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 1 0 1 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 44-rule system { [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, b] [b, q] [q, b] [b, q] -> [q, b] [b, p] [p, b] [b, q] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, b] [b, q] [q, b] [b, p] -> [q, b] [b, p] [p, b] [b, p] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, b] [b, q] [q, b] [b, 1] -> [q, b] [b, p] [p, b] [b, 1] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, b] [b, q] [q, b] [b, q] -> [p, b] [b, p] [p, b] [b, q] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, b] [b, q] [q, b] [b, p] -> [p, b] [b, p] [p, b] [b, p] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, b] [b, q] [q, b] [b, 1] -> [p, b] [b, p] [p, b] [b, 1] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, b] [b, q] [q, b] [b, q] -> [1, b] [b, p] [p, b] [b, q] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, b] [b, q] [q, b] [b, p] -> [1, b] [b, p] [p, b] [b, p] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, b] [b, q] [q, b] [b, 1] -> [1, b] [b, p] [p, b] [b, 1] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 5: [b, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 1 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 1 1 0 1 | | 0 0 0 0 0 | \ / [b, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 1 0 0 0 | \ / [p, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, b] is interpreted by / \ | 1 0 1 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [b, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, b] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, q] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [q, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, p] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [1, 1] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [0, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / [p, 0] is interpreted by / \ | 1 0 0 0 0 | | 0 1 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | | 0 0 0 0 0 | \ / Remains to prove termination of the 35-rule system { [b, p] [p, b] ->= [b, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, b] , [b, 1] [1, p] [p, 1] [1, q] ->= [b, q] [q, q] , [b, 1] [1, p] [p, 1] [1, 0] ->= [b, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, b] ->= [q, q] [q, b] , [q, 1] [1, p] [p, 1] [1, q] ->= [q, q] [q, q] , [q, 0] [0, q] [q, 0] [0, q] ->= [q, q] [q, q] , [q, 1] [1, q] [q, 1] [1, q] ->= [q, q] [q, q] , [q, p] [p, q] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [q, 1] [1, q] [q, 1] [1, p] ->= [q, q] [q, p] , [q, 0] [0, q] [q, 0] [0, 1] ->= [q, q] [q, 1] , [q, 1] [1, q] [q, 1] [1, 1] ->= [q, q] [q, 1] , [q, p] [p, 1] ->= [q, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [q, 1] [1, p] [p, 1] [1, 0] ->= [q, q] [q, 0] , [q, 1] [1, q] [q, 1] [1, 0] ->= [q, q] [q, 0] , [p, 1] [1, q] [q, 1] [1, b] ->= [p, q] [q, b] , [p, 1] [1, q] [q, 1] [1, q] ->= [p, q] [q, q] , [p, 1] [1, q] [q, 1] [1, p] ->= [p, q] [q, p] , [p, 1] [1, q] [q, 1] [1, 1] ->= [p, q] [q, 1] , [p, 1] [1, q] [q, 1] [1, 0] ->= [p, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, b] ->= [1, q] [q, b] , [1, 1] [1, p] [p, 1] [1, q] ->= [1, q] [q, q] , [1, 0] [0, q] [q, 0] [0, q] ->= [1, q] [q, q] , [1, 1] [1, q] [q, 1] [1, q] ->= [1, q] [q, q] , [1, p] [p, q] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, q] , [1, 1] [1, q] [q, 1] [1, p] ->= [1, q] [q, p] , [1, 0] [0, q] [q, 0] [0, 1] ->= [1, q] [q, 1] , [1, 1] [1, q] [q, 1] [1, 1] ->= [1, q] [q, 1] , [1, p] [p, 1] ->= [1, 1] [1, p] [p, 1] [1, 0] [0, 1] [1, 1] , [1, 1] [1, p] [p, 1] [1, 0] ->= [1, q] [q, 0] , [1, 1] [1, q] [q, 1] [1, 0] ->= [1, q] [q, 0] , [0, 1] [1, q] [q, 1] [1, b] ->= [0, q] [q, b] , [0, 1] [1, q] [q, 1] [1, q] ->= [0, q] [q, q] , [0, 1] [1, q] [q, 1] [1, p] ->= [0, q] [q, p] , [0, 1] [1, q] [q, 1] [1, 1] ->= [0, q] [q, 1] , [0, 1] [1, q] [q, 1] [1, 0] ->= [0, q] [q, 0] } The system is trivially terminating.