MAYBE 63.54/25.73 MAYBE 63.54/25.73 63.54/25.73 Problem: 63.54/25.73 a(x1) -> x1 63.54/25.73 a(x1) -> b(x1) 63.54/25.73 a(b(c(x1))) -> c(c(b(a(a(x1))))) 63.54/25.73 c(x1) -> x1 63.54/25.73 63.54/25.73 Proof: 63.54/25.73 Open 63.54/25.73 EOF