MAYBE 41.76/13.09 MAYBE 41.76/13.09 41.76/13.09 Problem: 41.76/13.09 a(x1) -> x1 41.76/13.09 a(b(x1)) -> b(a(c(a(a(x1))))) 41.76/13.09 c(c(c(x1))) -> b(x1) 41.76/13.09 41.76/13.09 Proof: 41.76/13.09 Open 41.76/13.10 EOF