6.42/2.16 YES 6.42/2.16 6.42/2.16 Problem: 6.42/2.16 b(a(a(a(x1)))) -> a(a(b(a(x1)))) 6.42/2.16 b(a(b(b(x1)))) -> b(a(a(a(x1)))) 6.42/2.16 a(a(b(b(x1)))) -> a(b(b(a(x1)))) 6.42/2.16 6.42/2.16 Proof: 6.42/2.16 Matrix Interpretation Processor: dim=1 6.42/2.16 6.42/2.16 interpretation: 6.42/2.16 [b](x0) = 2x0 + 3, 6.42/2.16 6.42/2.16 [a](x0) = x0 6.42/2.16 orientation: 6.42/2.16 b(a(a(a(x1)))) = 2x1 + 3 >= 2x1 + 3 = a(a(b(a(x1)))) 6.42/2.16 6.42/2.16 b(a(b(b(x1)))) = 8x1 + 21 >= 2x1 + 3 = b(a(a(a(x1)))) 6.42/2.16 6.42/2.16 a(a(b(b(x1)))) = 4x1 + 9 >= 4x1 + 9 = a(b(b(a(x1)))) 6.42/2.16 problem: 6.42/2.16 b(a(a(a(x1)))) -> a(a(b(a(x1)))) 6.42/2.16 a(a(b(b(x1)))) -> a(b(b(a(x1)))) 6.42/2.16 String Reversal Processor: 6.42/2.16 a(a(a(b(x1)))) -> a(b(a(a(x1)))) 6.42/2.16 b(b(a(a(x1)))) -> a(b(b(a(x1)))) 6.42/2.16 Matrix Interpretation Processor: dim=3 6.42/2.16 6.42/2.16 interpretation: 6.42/2.16 [1 0 0] 6.42/2.16 [b](x0) = [0 0 1]x0 6.42/2.16 [0 1 0] , 6.42/2.16 6.42/2.16 [1 1 0] [0] 6.42/2.16 [a](x0) = [0 1 1]x0 + [1] 6.42/2.16 [0 0 0] [0] 6.42/2.16 orientation: 6.42/2.16 [1 2 3] [3] [1 2 1] [1] 6.42/2.16 a(a(a(b(x1)))) = [0 1 1]x1 + [3] >= [0 1 1]x1 + [3] = a(b(a(a(x1)))) 6.42/2.16 [0 0 0] [0] [0 0 0] [0] 6.42/2.16 6.42/2.16 [1 2 1] [1] [1 2 1] [1] 6.42/2.16 b(b(a(a(x1)))) = [0 1 1]x1 + [2] >= [0 1 1]x1 + [2] = a(b(b(a(x1)))) 6.42/2.16 [0 0 0] [0] [0 0 0] [0] 6.42/2.16 problem: 6.42/2.16 b(b(a(a(x1)))) -> a(b(b(a(x1)))) 6.42/2.16 String Reversal Processor: 6.42/2.16 a(a(b(b(x1)))) -> a(b(b(a(x1)))) 6.42/2.16 KBO Processor: 6.42/2.16 weight function: 6.42/2.16 w0 = 1 6.42/2.16 w(b) = w(a) = 1 6.42/2.16 precedence: 6.42/2.16 a > b 6.42/2.16 problem: 6.42/2.16 6.42/2.16 Qed 6.42/2.17 EOF