(from AG01 4.24)
(VAR x y)
(RULES
intlist(nil) -> nil
intlist(cons(x,y)) -> cons(s(x),intlist(y))
int(0,0) -> cons(0,nil)
int(0,s(y)) -> cons(0,int(s(0),s(y)))
int(s(x),0) -> nil
int(s(x),s(y)) -> intlist(int(x,y))
)
(STRATEGY INNERMOST)