712.93/299.38 MAYBE 712.93/299.38 712.93/299.38 Problem: 712.93/299.38 strict: 712.93/299.38 c(a(c(x1))) -> c(c(b(x1))) 712.93/299.38 c(c(c(x1))) -> b(c(c(x1))) 712.93/299.38 weak: 712.93/299.38 b(c(a(x1))) -> a(c(b(x1))) 712.93/299.38 a(b(a(x1))) -> c(a(a(x1))) 712.93/299.38 b(c(b(x1))) -> b(c(b(x1))) 712.93/299.38 c(b(a(x1))) -> c(a(a(x1))) 712.93/299.38 712.93/299.38 Proof: 712.93/299.38 Open 712.93/299.39 EOF