(VAR X Y)
(RULES

plus(0,Y) -> Y
plus(s(X),Y) -> s(plus(X,Y))
min(X,0) -> X
min(s(X),s(Y)) -> min(X,Y)
min(min(X,Y),Z) -> min(X,plus(Y,Z))
quot(0,s(Y)) -> 0
quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y)))

)