MAYBE
36.14/10.32	MAYBE
36.14/10.32	
36.14/10.32	Problem:
36.14/10.32	 a(x1) -> x1
36.14/10.32	 a(a(x1)) -> b(x1)
36.14/10.32	 b(x1) -> c(x1)
36.14/10.32	 b(c(x1)) -> c(b(a(x1)))
36.14/10.32	 c(x1) -> x1
36.14/10.32	
36.14/10.32	Proof:
36.14/10.32	 Open
36.14/10.32	EOF