MAYBE
38.78/11.26	MAYBE
38.78/11.26	
38.78/11.26	Problem:
38.78/11.26	 a(x1) -> x1
38.78/11.26	 a(b(x1)) -> b(c(b(a(c(a(a(x1)))))))
38.78/11.26	 c(c(x1)) -> x1
38.78/11.26	
38.78/11.26	Proof:
38.78/11.26	 Open
38.78/11.26	EOF