MAYBE
0.08/0.17	MAYBE
0.08/0.18	
0.08/0.18	Problem:
0.08/0.18	 minus(x,0()) -> x
0.08/0.18	 minus(s(x),s(y)) -> minus(x,y)
0.08/0.18	 quot(0(),s(y)) -> 0()
0.08/0.18	 quot(s(x),s(y)) -> s(quot(minus(x,y),s(y)))
0.08/0.18	 plus(0(),y) -> y
0.08/0.18	 plus(s(x),y) -> s(plus(x,y))
0.08/0.18	 minus(minus(x,y),z) -> minus(x,plus(y,z))
0.08/0.18	 app(nil(),k) -> k
0.08/0.18	 app(l,nil()) -> l
0.08/0.18	 app(cons(x,l),k) -> cons(x,app(l,k))
0.08/0.18	 sum(cons(x,nil())) -> cons(x,nil())
0.08/0.18	 sum(cons(x,cons(y,l))) -> sum(cons(plus(x,y),l))
0.08/0.18	 sum(app(l,cons(x,cons(y,k)))) -> sum(app(l,sum(cons(x,cons(y,k)))))
0.08/0.18	
0.08/0.18	Proof:
0.08/0.18	 Open
0.08/0.18	EOF