prolog: reduce then write the value of a predicate

Posted by jreid9001 on Stack Overflow See other posts from Stack Overflow or by jreid9001
Published on 2010-05-18T13:59:58Z Indexed on 2010/05/18 14:10 UTC
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prolog

This is some of the code I am writing

assert(bar(foo)),
assert(foo(bar-5)),

I'm not sure if it works though. I'm trying to get it to reduce foo by 5. I need a way to write the value of foo, but haven't found a way too. write('foo is' + foo) would be the logical way to me, but doesn't seem to work.

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prolog: reduce then write the value of a predicate

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