MAYBE
0.09/0.18	MAYBE
0.09/0.18	
0.09/0.18	Problem:
0.09/0.18	 le(0(),y) -> true()
0.09/0.18	 le(s(x),0()) -> false()
0.09/0.18	 le(s(x),s(y)) -> le(x,y)
0.09/0.18	 int(x,y) -> if(le(x,y),x,y)
0.09/0.18	 if(true(),x,y) -> cons(x,int(s(x),y))
0.09/0.18	 if(false(),x,y) -> nil()
0.09/0.18	
0.09/0.18	Proof:
0.09/0.18	 Open
0.09/0.18	EOF