197.25/50.47 MAYBE 197.25/50.47 197.25/50.47 Problem: 197.25/50.47 a(a(b(a(a(b(a(b(a(a(b(x1))))))))))) -> a(a(b(a(b(a(a(b(a(b(a(a(b(a(x1)))))))))))))) 197.25/50.47 197.25/50.47 Proof: 197.25/50.47 Open 197.25/50.47 EOF