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plurals

POIs a predicate with variable arity acceptable in Prolog?
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2011-11-28T19:21:33.107
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Body
Is it possible to have a "variable arity predicate" in Prolog? I mean something like this: <pre><code>my_predicate( [a,b,c], [a,c], [a], [a,b,c,d], N, RESULT) </code></pre> with the number of initial lists unknown at the beginning? Using the <code>univ</code> operator ( =.. ) it would be possible to unify it with a list of terms and traversing it like every other list. But how to write the goal? <pre><code>my_predicate(??) =.. [??] </code></pre> I really don't know if this is even possible..
Tags
<prolog><logic>
Title
Is a predicate with variable arity acceptable in Prolog?
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