Need help in Prolog

[Berndit]

Hello.
I`m a beginner in Prolog and I need help with the following problem.

interval(X,5,9).
X=5;
X=6;
X=7;
X=8;
X=9;
No

In words:
I need the descriptor intervall(x,a,b) to search all numbers
between a and b (a<=x<=b).

Thank you

 

[beerak]

You can easy modify this predicat:

range(A,B,[A]) :- A = B.
range(A,B,[A|Out]) :- A < B, A1 is A + 1,
range(A1,B,Out).

range(1,5,A).
A = [1,2,3,4,5].

 

[Berndit]

Hello
thank you for the answer.
I want to change this predicat like this:

range(X,5,9).
X=[6,7,8].

So I hope you can help me.
Thank you