195.38/49.88	MAYBE
195.38/49.88	
195.38/49.88	Problem:
195.38/49.88	 a(x1) -> x1
195.38/49.88	 a(b(x1)) -> b(c(a(a(x1))))
195.38/49.88	 b(x1) -> a(x1)
195.38/49.88	 c(c(x1)) -> b(x1)
195.38/49.88	
195.38/49.88	Proof:
195.38/49.88	 Open
195.38/49.88	EOF