MAYBE
0.08/0.18	MAYBE
0.08/0.18	
0.08/0.18	Problem:
0.08/0.18	 diff(x,y) -> cond1(equal(x,y),x,y)
0.08/0.18	 cond1(true(),x,y) -> 0()
0.08/0.18	 cond1(false(),x,y) -> cond2(gt(x,y),x,y)
0.08/0.18	 cond2(true(),x,y) -> s(diff(x,s(y)))
0.08/0.18	 cond2(false(),x,y) -> s(diff(s(x),y))
0.08/0.18	 gt(0(),v) -> false()
0.08/0.18	 gt(s(u),0()) -> true()
0.08/0.18	 gt(s(u),s(v)) -> gt(u,v)
0.08/0.18	 equal(0(),0()) -> true()
0.08/0.18	 equal(s(x),0()) -> false()
0.08/0.18	 equal(0(),s(y)) -> false()
0.08/0.18	 equal(s(x),s(y)) -> equal(x,y)
0.08/0.18	
0.08/0.18	Proof:
0.08/0.18	 Open
0.08/0.19	EOF