YES After renaming modulo { 0->0, 1->1, 3->2, 4->3, 5->4, 2->5 }, it remains to prove termination of the 5-rule system { 0 -> 1 , 0 0 -> 0 , 2 3 4 -> 3 2 4 , 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 -> 1 0 0 1 1 1 0 0 1 0 1 0 0 1 0 1 1 0 0 1 0 1 0 0 0 0 1 1 1 0 1 1 1 1 1 0 1 1 1 0 1 1 0 0 1 1 1 0 1 0 0 0 0 1 1 0 0 1 1 1 0 1 1 1 1 0 1 0 0 0 1 1 0 0 0 0 1 1 0 1 0 1 1 0 1 0 0 1 0 0 1 1 0 0 0 1 1 1 1 0 0 1 1 0 1 0 1 0 0 1 1 0 1 0 1 1 1 1 0 0 1 1 0 1 0 0 1 0 0 0 0 0 1 0 0 0 1 1 1 0 0 1 1 1 1 0 0 0 1 1 0 1 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 1 1 1 0 0 1 1 0 1 1 0 1 1 1 1 1 0 1 1 1 0 0 1 1 1 1 1 0 1 0 1 0 0 0 1 1 1 1 1 0 0 0 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 1 0 1 1 1 0 0 0 0 0 1 1 0 0 1 0 1 0 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 1 1 1 1 1 1 , 0 1 1 1 1 0 0 1 0 1 0 0 1 0 0 1 0 1 1 1 1 0 1 0 1 1 0 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 0 1 0 0 0 0 0 1 1 1 1 0 0 1 0 0 0 0 1 1 1 1 0 1 1 0 0 1 0 0 1 0 1 0 1 1 0 0 1 0 0 1 0 0 1 1 1 0 1 0 0 1 0 1 1 1 0 0 1 1 0 1 0 1 0 1 1 0 0 1 0 0 1 0 0 0 1 0 1 0 1 0 1 0 0 0 1 0 0 1 0 1 1 1 0 0 0 1 0 1 0 0 1 1 0 1 1 1 1 1 0 1 0 1 1 1 0 0 1 1 1 0 1 1 1 1 0 1 0 0 1 0 1 1 1 0 1 1 0 0 1 1 0 1 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 1 0 0 0 1 0 1 1 0 1 1 0 0 0 1 0 1 0 1 0 1 0 0 1 0 1 1 1 0 1 1 0 1 0 0 0 1 0 1 1 1 -> 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 2: 0 is interpreted by / \ | 1 7 | | 0 1 | \ / 1 is interpreted by / \ | 1 0 | | 0 1 | \ / 2 is interpreted by / \ | 1 0 | | 0 1 | \ / 3 is interpreted by / \ | 1 0 | | 0 1 | \ / 4 is interpreted by / \ | 1 0 | | 0 1 | \ / 5 is interpreted by / \ | 1 9 | | 0 1 | \ / After renaming modulo { 2->0, 3->1, 4->2 }, it remains to prove termination of the 1-rule system { 0 1 2 -> 1 0 2 } The system was filtered by the following matrix interpretation of type E_J with J = {1,...,2} and dimension 4: 0 is interpreted by / \ | 1 0 1 0 | | 0 1 0 0 | | 0 0 0 0 | | 0 0 0 0 | \ / 1 is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 0 1 | | 0 0 0 0 | \ / 2 is interpreted by / \ | 1 0 0 0 | | 0 1 0 0 | | 0 0 0 0 | | 0 1 0 0 | \ / After renaming modulo { }, it remains to prove termination of the 0-rule system { } The system is trivially terminating.