(VAR x y z ) (STRATEGY INNERMOST) (RULES minus(x,0) -> x minus(s(x),s(y)) -> minus(x,y) quot(0,s(y)) -> 0 quot(s(x),s(y)) -> s(quot(minus(x,y),s(y))) minus(minus(x,y),z) -> minus(x,plus(y,z)) plus(s(x),s(y)) -> s(s(plus(if(gt(x,y),x,y),if(not(gt(x,y)),id(x),id(y))))) plus(s(x),x) -> plus(if(gt(x,x),id(x),id(x)),s(x)) plus(zero,y) -> y plus(id(x),s(y)) -> s(plus(x,if(gt(s(y),y),y,s(y)))) id(x) -> x if(true,x,y) -> x if(false,x,y) -> y not(x) -> if(x,false,true) gt(s(x),zero) -> true gt(zero,y) -> false gt(s(x),s(y)) -> gt(x,y) )