MAYBE
92.98/55.44	MAYBE
92.98/55.44	
92.98/55.44	Problem:
92.98/55.44	 a(a(y,0()),0()) -> y
92.98/55.44	 c(c(y)) -> y
92.98/55.44	 c(a(c(c(y)),x)) -> a(c(c(c(a(x,0())))),y)
92.98/55.44	
92.98/55.44	Proof:
92.98/55.44	 Open
92.98/55.44	EOF