197.38/50.53 MAYBE 197.38/50.53 197.38/50.53 Problem: 197.38/50.53 a(a(b(a(a(a(a(x1))))))) -> a(a(a(a(a(a(b(a(a(b(x1)))))))))) 197.38/50.53 197.38/50.53 Proof: 197.38/50.53 Open 197.38/50.53 EOF