MAYBE
33.92/10.31	MAYBE
33.92/10.31	
33.92/10.31	Problem:
33.92/10.31	 a(x1) -> x1
33.92/10.31	 a(b(x1)) -> b(b(c(a(x1))))
33.92/10.31	 b(x1) -> x1
33.92/10.31	 c(c(b(x1))) -> a(x1)
33.92/10.31	
33.92/10.31	Proof:
33.92/10.31	 Open
33.92/10.31	EOF