MAYBE
0.08/0.19	MAYBE
0.08/0.19	
0.08/0.19	Problem:
0.08/0.19	 app(x,y) -> helpa(0(),plus(length(x),length(y)),x,y)
0.08/0.19	 plus(x,0()) -> x
0.08/0.19	 plus(x,s(y)) -> s(plus(x,y))
0.08/0.19	 length(nil()) -> 0()
0.08/0.19	 length(cons(x,y)) -> s(length(y))
0.08/0.19	 helpa(c,l,ys,zs) -> if(ge(c,l),c,l,ys,zs)
0.08/0.19	 ge(x,0()) -> true()
0.08/0.19	 ge(0(),s(x)) -> false()
0.08/0.19	 ge(s(x),s(y)) -> ge(x,y)
0.08/0.19	 if(true(),c,l,ys,zs) -> nil()
0.08/0.19	 if(false(),c,l,ys,zs) -> helpb(c,l,ys,zs)
0.08/0.19	 take(0(),cons(x,xs()),ys) -> x
0.08/0.19	 take(0(),nil(),cons(y,ys)) -> y
0.08/0.19	 take(s(c),cons(x,xs()),ys) -> take(c,xs(),ys)
0.08/0.19	 take(s(c),nil(),cons(y,ys)) -> take(c,nil(),ys)
0.08/0.19	 helpb(c,l,ys,zs) -> cons(take(c,ys,zs),helpa(s(c),l,ys,zs))
0.08/0.19	
0.08/0.19	Proof:
0.08/0.19	 Open
0.08/0.19	EOF