Prolog - generating numbers fitting given range

Question

I\'d like to use predicates like:

range(X,0,5)
range(X,4,200)
range(X,-1000000,1000000)
dom_range(X,-1000000,1000000)

with meaning :

<

Answer 1

Dave's answer is almost perfect: there is no check to see if low < high. I added a condition and now it works fine (otherwise it generates numbers from low to infinity):

range(Low, Low, High).
range(Out,Low,High) :- NewLow is Low+1, NewLow =< High, range(Out, NewLow, High).

Hope that helps!