MAYBE
0.08/0.19	MAYBE
0.08/0.19	
0.08/0.19	Problem:
0.08/0.19	 min(x,0()) -> 0()
0.08/0.19	 min(0(),y) -> 0()
0.08/0.19	 min(s(x),s(y)) -> s(min(x,y))
0.08/0.19	 max(x,0()) -> x
0.08/0.19	 max(0(),y) -> y
0.08/0.19	 max(s(x),s(y)) -> s(max(x,y))
0.08/0.19	 -(x,0()) -> x
0.08/0.19	 -(s(x),s(y)) -> -(x,y)
0.08/0.19	 gcd(s(x),s(y)) -> gcd(-(s(max(x,y)),s(min(x,y))),s(min(x,y)))
0.08/0.19	 gcd(s(x),0()) -> s(x)
0.08/0.19	 gcd(0(),s(y)) -> s(y)
0.08/0.19	
0.08/0.19	Proof:
0.08/0.19	 Open
0.08/0.19	EOF