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

bunsz at bunsz at
Fri Jan 22 02:16:34 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.

Ok, you're totally right. But can I detect, that I don`t know anything about it? The syntax "#res" means the individual is to be defined in this ontology and not in an imported one, but supposed there is no definition nowhere, isn't this kind of an inconsistency? What about this UntypedResource class mentioned by Thomas?


>> 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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