197.24/50.49 MAYBE 197.24/50.49 197.24/50.49 Problem: 197.24/50.49 a(b(a(a(b(a(b(a(b(a(x1)))))))))) -> a(a(b(a(b(a(b(a(b(a(a(b(a(b(x1)))))))))))))) 197.24/50.49 197.24/50.49 Proof: 197.24/50.49 Open 197.24/50.50 EOF