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Re: model theory for RDF/S

From: David Allsopp <d.allsopp@signal.qinetiq.com>
Date: Mon, 08 Oct 2001 12:05:41 +0100
Message-ID: <3BC18885.CF56AAD2@signal.qinetiq.com>
To: Pat Hayes <phayes@ai.uwf.edu>
CC: www-rdf-logic@w3.org


Pat Hayes wrote:


> >>  rdf:type rdf:range rdfs:Class .
> >>
> >>  Indeed, there seems to be no way to generate that, which should of
> >>  course be in every closure. Damn, you are right. And of course also:
> >>
> >>  rdfs:subClassOf rdf:range rdfs:Class .
> >>  rdfs:subClassOf rdf:domain rdfs:Class .
> >  > rdf:range rdf:domain rdfs:Property .
> >>  rdf:range rdf:range rdfs:Class .
> >>  rdf:domain rdf:domain rdfs:Property .
> >>  rdf:domain rdf:range rdfs:Class .


Pat,

Should there also be, for each Resource uuu of type Class, the triple

uuu rdfs:subClassOf uuu

I assume this _is_ trivially true, now that subClass cycles are
permitted?

Regards,

David Allsopp
QinetiQ
UK

-- 
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Received on Monday, 8 October 2001 07:06:49 GMT

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