MAYBE
0.07/0.18	MAYBE
0.07/0.18	
0.07/0.18	Problem:
0.07/0.18	 -(x,0()) -> x
0.07/0.18	 -(s(x),s(y)) -> -(x,y)
0.07/0.18	 min(x,0()) -> 0()
0.07/0.18	 min(0(),y) -> 0()
0.07/0.18	 min(s(x),s(y)) -> s(min(x,y))
0.07/0.18	 twice(0()) -> 0()
0.07/0.18	 twice(s(x)) -> s(s(twice(x)))
0.07/0.18	 f(s(x),s(y)) -> f(-(y,min(x,y)),s(twice(min(x,y))))
0.07/0.18	 f(s(x),s(y)) -> f(-(x,min(x,y)),s(twice(min(x,y))))
0.07/0.18	
0.07/0.18	Proof:
0.07/0.18	 Open
0.07/0.18	EOF