MAYBE 104.25/55.33 MAYBE 104.25/55.33 104.25/55.33 Problem: 104.25/55.33 a(x1) -> x1 104.25/55.33 a(b(x1)) -> c(x1) 104.25/55.33 a(c(c(x1))) -> c(b(a(c(a(x1))))) 104.25/55.33 104.25/55.33 Proof: 104.25/55.33 Open 104.25/55.33 EOF