195.63/49.98 MAYBE 195.63/49.98 195.63/49.98 Problem: 195.63/49.98 a(x1) -> x1 195.63/49.98 a(b(x1)) -> b(b(a(c(a(x1))))) 195.63/49.98 b(x1) -> x1 195.63/49.98 c(c(c(x1))) -> x1 195.63/49.98 195.63/49.98 Proof: 195.63/49.98 Open 195.63/49.98 EOF