MAYBE 54.65/18.97 MAYBE 54.65/18.97 54.65/18.97 Problem: 54.65/18.97 a(a(b(x1))) -> b(b(c(a(a(a(x1)))))) 54.65/18.97 b(c(a(x1))) -> x1 54.65/18.97 54.65/18.97 Proof: 54.65/18.97 Open 54.65/18.97 EOF