194.66/49.66 MAYBE 194.66/49.66 194.66/49.66 Problem: 194.66/49.66 b(b(a(a(a(b(x1)))))) -> b(a(a(a(b(a(b(x1))))))) 194.66/49.66 b(b(x1)) -> b(a(b(a(b(a(b(x1))))))) 194.66/49.66 b(a(b(a(a(a(b(a(b(x1))))))))) -> b(b(a(a(b(x1))))) 194.66/49.66 b(a(a(b(x1)))) -> b(a(a(a(b(x1))))) 194.66/49.66 194.66/49.66 Proof: 194.66/49.66 Open 194.66/49.66 EOF