MAYBE
33.65/10.37	MAYBE
33.65/10.37	
33.65/10.37	Problem:
33.65/10.37	 a(x1) -> x1
33.65/10.37	 a(b(x1)) -> c(b(a(a(c(x1)))))
33.65/10.37	 b(x1) -> x1
33.65/10.37	 c(c(x1)) -> b(x1)
33.65/10.37	
33.65/10.37	Proof:
33.65/10.37	 Open
33.65/10.37	EOF