MAYBE
0.07/0.18	MAYBE
0.07/0.18	
0.07/0.18	Problem:
0.07/0.18	 fac(s(x)) -> *(fac(p(s(x))),s(x))
0.07/0.18	 p(s(0())) -> 0()
0.07/0.18	 p(s(s(x))) -> s(p(s(x)))
0.07/0.18	
0.07/0.18	Proof:
0.07/0.18	 Open
0.07/0.18	EOF