MAYBE
0.08/0.18	MAYBE
0.08/0.18	
0.08/0.18	Problem:
0.08/0.18	 le(0(),y) -> true()
0.08/0.18	 le(s(x),0()) -> false()
0.08/0.18	 le(s(x),s(y)) -> le(x,y)
0.08/0.18	 minus(x,0()) -> x
0.08/0.18	 minus(0(),x) -> 0()
0.08/0.18	 minus(s(x),s(y)) -> minus(x,y)
0.08/0.18	 gcd(0(),y) -> y
0.08/0.18	 gcd(s(x),0()) -> s(x)
0.08/0.18	 gcd(s(x),s(y)) -> if_gcd(le(y,x),s(x),s(y))
0.08/0.18	 if_gcd(true(),x,y) -> gcd(minus(x,y),y)
0.08/0.18	 if_gcd(false(),x,y) -> gcd(minus(y,x),x)
0.08/0.18	
0.08/0.18	Proof:
0.08/0.18	 Open
0.08/0.18	EOF