MAYBE
0.08/0.18	MAYBE
0.08/0.18	
0.08/0.18	Problem:
0.08/0.18	 p(s(x)) -> x
0.08/0.18	 fact(0()) -> s(0())
0.08/0.18	 fact(s(x)) -> *(s(x),fact(p(s(x))))
0.08/0.18	 *(0(),y) -> 0()
0.08/0.18	 *(s(x),y) -> +(*(x,y),y)
0.08/0.18	 +(x,0()) -> x
0.08/0.18	 +(x,s(y)) -> s(+(x,y))
0.08/0.18	
0.08/0.18	Proof:
0.08/0.18	 Open
0.08/0.18	EOF