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[protege-owl] How to detect undefined references in rdf:resource

Timothy Redmond tredmond at stanford.edu
Thu Jan 21 23:30:32 PST 2010


On Jan 20, 2010, at 10:31 AM, Buns wrote:

> Hi,
>
> I wonder if it is possible to detect a reference to a non existent  
> resource.

This doesn't mean anything.  You have a name therefore it exists.  It  
is possible that you don't know anything about it (e.g. its type) but  
that might be another question.

-Timothy


>
> If I have a property like<p1:hasWhatever rdf:resource="#res">
> and "res" doesn't exist ... can this be detected by the reasoner
> somehow, or am I fooled again by the open world?
>
> Regards,
> Michael
>
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