MAYBE
35.05/10.31	MAYBE
35.05/10.31	
35.05/10.31	Problem:
35.05/10.31	 a(x1) -> x1
35.05/10.31	 a(b(x1)) -> b(a(c(a(x1))))
35.05/10.31	 b(x1) -> x1
35.05/10.31	 c(c(c(x1))) -> b(x1)
35.05/10.31	
35.05/10.31	Proof:
35.05/10.31	 Open
35.05/10.31	EOF