MAYBE 38.33/10.89 MAYBE 38.33/10.89 38.33/10.89 Problem: 38.33/10.89 a(x1) -> x1 38.33/10.89 a(a(x1)) -> a(b(c(b(a(x1))))) 38.33/10.89 b(c(x1)) -> c(a(x1)) 38.33/10.89 38.33/10.89 Proof: 38.33/10.89 Open 38.33/10.90 EOF