Add possible values of a variable - it's sounds easy!

[JohnyLehman]

Given is this:

someNumbers(2).
someNumbers(3).
someNumbers(5).

How can I write a predicate to add these numbers and get the result - eg. "10" in this example ? Something like:

sumOfSomeNumbers(X) :- ...

To do it with a list [2,3,5] is very easy. You can use recursion. But how can I make it in this way?

Any kind of help is valuable.

Thanks,
Jon

 

[QuantumDoja]

what?

http://www.demonasp.co.uk