MAYBE 0.08/0.18 MAYBE 0.08/0.18 0.08/0.18 Problem: 0.08/0.18 minus(0(),y) -> 0() 0.08/0.18 minus(x,0()) -> x 0.08/0.18 minus(s(x),s(y)) -> minus(x,y) 0.08/0.18 plus(0(),y) -> y 0.08/0.18 plus(s(x),y) -> plus(x,s(y)) 0.08/0.18 zero(s(x)) -> false() 0.08/0.18 zero(0()) -> true() 0.08/0.18 p(s(x)) -> x 0.08/0.18 div(x,y) -> quot(x,y,0()) 0.08/0.18 quot(x,y,z) -> if(zero(x),x,y,plus(z,s(0()))) 0.08/0.18 if(true(),x,y,z) -> p(z) 0.08/0.18 if(false(),x,s(y),z) -> quot(minus(x,s(y)),s(y),z) 0.08/0.18 0.08/0.18 Proof: 0.08/0.18 Open 0.08/0.19 EOF