- From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
- Date: Thu, 27 Sep 2001 14:23:02 -0400
- To: phayes@ai.uwf.edu
- Cc: www-rdf-logic@w3.org
From: Pat Hayes <phayes@ai.uwf.edu> Subject: Re: model theory for RDF/S Date: Thu, 27 Sep 2001 12:48:54 -0500 > > > >6. has the implication that ``classes'' have to be resources (i.e., not > >literals that are not resources). This is not captured in the RDF section > >of the model theory document. > > Seems to me that these conditions only have any effect on the formal > language in RDFS, since RDF has no way to refer to classes as such, > including the class of properties. RDF properties - ie arc labels in > an RDF graph - are required (by the RDF syntax) to be URIs which are > required (by the model theory) to denote resources (members of IR), > but I don't see any other consequences of this for the meanings of > any expressions in the actual formal language until we get to RDFS. > > Pat Unless a query language for RDF cares about this sort of stuff. peter
Received on Thursday, 27 September 2001 14:21:54 UTC