MAYBE
0.08/0.18	MAYBE
0.08/0.18	
0.08/0.18	Problem:
0.08/0.18	 cond(true(),x,y) -> cond(gr(x,y),x,add(x,y))
0.08/0.18	 gr(0(),x) -> false()
0.08/0.18	 gr(s(x),0()) -> true()
0.08/0.18	 gr(s(x),s(y)) -> gr(x,y)
0.08/0.18	 add(0(),x) -> x
0.08/0.18	 add(s(x),y) -> s(add(x,y))
0.08/0.18	
0.08/0.18	Proof:
0.08/0.18	 Open
0.08/0.18	EOF