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Re: new version of S&AS in response to changes to RDF model theory

From: Dan Connolly <connolly@w3.org>
Date: 23 Jul 2003 15:40:28 -0700
To: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>
Cc: www-webont-wg@w3.org
Message-Id: <1059000027.1660.1039.camel@jammer.dm93.org>

On Wed, 2003-07-23 at 10:40, Peter F. Patel-Schneider wrote:
> A new version of S&AS is available at
> http://www-db.research.bell-labs.com/user/pfps/owl/semantics/
> that contains fixes in response to the announced changes in the RDF model
> theory to make rdfs:subClassOf and rdfs:subPropertyOf non-extensional and
> to not create type triples for collections.
> The first is needed to make the OWL semantics work out right.  The second
> is not needed, but does mean that rdf:parseType="Collection" (or whatever)
> constructs will not necessarily not be in OWL DL.
> I also note that there is at least one other significant change to the RDF
> model theory that may impact OWL.  Predicates no longer need to be
> resources in RDF.

Huh? I don't recall any such change. Can you help me find
what suggests to you that there has been such a change?

>   I believe that this change has not been announced and
> that it is not in response to problems with the RDF model theory.
> peter

Received on Wednesday, 23 July 2003 18:40:30 UTC

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