MAYBE
38.38/10.34	MAYBE
38.38/10.34	
38.38/10.34	Problem:
38.38/10.34	 a(x1) -> x1
38.38/10.34	 a(a(b(x1))) -> b(b(c(a(a(a(x1))))))
38.38/10.34	 c(a(x1)) -> x1
38.38/10.34	
38.38/10.34	Proof:
38.38/10.34	 Open
38.38/10.34	EOF