2.50/1.12 YES 2.50/1.12 2.50/1.12 Problem: 2.50/1.12 a(b(a(x1))) -> a(b(b(a(x1)))) 2.50/1.12 b(b(b(x1))) -> b(b(x1)) 2.50/1.12 2.50/1.12 Proof: 2.50/1.12 Matrix Interpretation Processor: dim=3 2.50/1.12 2.50/1.12 interpretation: 2.50/1.12 [1 1 0] [0] 2.50/1.12 [b](x0) = [0 0 1]x0 + [0] 2.50/1.12 [0 0 0] [1], 2.50/1.12 2.50/1.12 [1 0 1] 2.50/1.12 [a](x0) = [0 0 1]x0 2.50/1.12 [0 0 0] 2.50/1.12 orientation: 2.50/1.12 [1 0 2] [1] [1 0 2] [1] 2.50/1.12 a(b(a(x1))) = [0 0 0]x1 + [1] >= [0 0 0]x1 + [1] = a(b(b(a(x1)))) 2.50/1.12 [0 0 0] [0] [0 0 0] [0] 2.50/1.12 2.50/1.12 [1 1 1] [1] [1 1 1] [0] 2.50/1.12 b(b(b(x1))) = [0 0 0]x1 + [1] >= [0 0 0]x1 + [1] = b(b(x1)) 2.50/1.12 [0 0 0] [1] [0 0 0] [1] 2.50/1.12 problem: 2.50/1.12 a(b(a(x1))) -> a(b(b(a(x1)))) 2.50/1.12 Bounds Processor: 2.50/1.12 bound: 1 2.50/1.12 enrichment: match 2.50/1.12 automaton: 2.50/1.12 final states: {3} 2.50/1.12 transitions: 2.50/1.12 a1(12) -> 13* 2.50/1.12 a1(9) -> 10* 2.50/1.12 b1(10) -> 11* 2.50/1.12 b1(14) -> 15* 2.50/1.12 b1(11) -> 12* 2.50/1.12 a0(3) -> 3* 2.50/1.12 b0(3) -> 3* 2.50/1.12 3 -> 9* 2.50/1.12 13 -> 10,14,3 2.50/1.12 15 -> 11* 2.50/1.20 problem: 2.50/1.20 2.50/1.20 Qed 2.50/1.20 EOF