MAYBE
0.09/0.19	MAYBE
0.09/0.19	
0.09/0.19	Problem:
0.09/0.19	 minus_active(0(),y) -> 0()
0.09/0.19	 mark(0()) -> 0()
0.09/0.19	 minus_active(s(x),s(y)) -> minus_active(x,y)
0.09/0.19	 mark(s(x)) -> s(mark(x))
0.09/0.19	 ge_active(x,0()) -> true()
0.09/0.19	 mark(minus(x,y)) -> minus_active(x,y)
0.09/0.19	 ge_active(0(),s(y)) -> false()
0.09/0.19	 mark(ge(x,y)) -> ge_active(x,y)
0.09/0.19	 ge_active(s(x),s(y)) -> ge_active(x,y)
0.09/0.19	 mark(div(x,y)) -> div_active(mark(x),y)
0.09/0.19	 div_active(0(),s(y)) -> 0()
0.09/0.19	 mark(if(x,y,z)) -> if_active(mark(x),y,z)
0.09/0.19	 div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),0())
0.09/0.19	 if_active(true(),x,y) -> mark(x)
0.09/0.19	 minus_active(x,y) -> minus(x,y)
0.09/0.19	 if_active(false(),x,y) -> mark(y)
0.09/0.19	 ge_active(x,y) -> ge(x,y)
0.09/0.19	 if_active(x,y,z) -> if(x,y,z)
0.09/0.19	 div_active(x,y) -> div(x,y)
0.09/0.19	
0.09/0.19	Proof:
0.09/0.19	 Open
0.09/0.21	EOF