MAYBE
0.08/0.18	MAYBE
0.08/0.18	
0.08/0.18	Problem:
0.08/0.18	 f(0()) -> 1()
0.08/0.18	 f(s(x)) -> g(x,s(x))
0.08/0.18	 g(0(),y) -> y
0.08/0.18	 g(s(x),y) -> g(x,+(y,s(x)))
0.08/0.18	 +(x,0()) -> x
0.08/0.18	 +(x,s(y)) -> s(+(x,y))
0.08/0.18	 g(s(x),y) -> g(x,s(+(y,x)))
0.08/0.18	
0.08/0.18	Proof:
0.08/0.18	 Open
0.08/0.18	EOF