196.80/50.39 MAYBE 196.80/50.39 196.80/50.39 Problem: 196.80/50.39 a(b(a(a(a(a(x1)))))) -> a(a(a(a(a(b(a(b(a(b(a(a(b(x1))))))))))))) 196.80/50.39 196.80/50.39 Proof: 196.80/50.39 Open 196.80/50.40 EOF