- From: Patrick Stickler <patrick.stickler@nokia.com>
- Date: Mon, 25 Nov 2002 15:58:12 +0200
- To: "ext Nikita Ogievetsky" <nogievet@cogx.com>, "Paul Prescod" <paul@prescod.net>, "Richard H. McCullough" <rhm@cdepot.net>, "Alexander Jerusalem" <ajeru@vknn.org>
- Cc: "Doug Ransom" <doug.ransom@alumni.uvic.ca>, <www-rdf-interest@w3.org>
[Patrick Stickler, Nokia/Finland, (+358 40) 801 9690, patrick.stickler@nokia.com] ----- Original Message ----- From: "ext Nikita Ogievetsky" <nogievet@cogx.com> To: "Paul Prescod" <paul@prescod.net>; "Richard H. McCullough" <rhm@cdepot.net>; "Alexander Jerusalem" <ajeru@vknn.org> Cc: "Doug Ransom" <doug.ransom@alumni.uvic.ca>; <www-rdf-interest@w3.org> Sent: 25 November, 2002 15:39 Subject: Re: a URI is a name (tel uri scheme and VCARD RDF) > > Alexander, > > This is actually one of the axioms of Topic Maps [1]. > In my RDF Topic Maps attempts [2] I am defining two RTM properties: > > <daml:UnumbiguousProperty rdf:ID="indicatedBy"> > <rdfs:subPropertyOf > rdf:resource="http://www.daml.org/2001/03/daml+oil#TransitiveProperty"/> > <rdfs:domain rdf:resource="#topic"/> > <rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/> > <rdfs:comment>Subject Indicating Resource</rdfs:comment> > </daml:UnumbiguousProperty> > > <daml:UnumbiguousProperty rdf:ID="constitutedBy"> > <rdfs:domain rdf:resource="#topic"/> > <rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/> > <rdfs:comment>Subject Constituting Resource</rdfs:comment> > </daml:UnumbiguousProperty> > > So that I can say in one document: > > <rdf:Description rdf:ID="w3c"> > <rtm:indicatedBy rdf:resource="http://www.w3c.org"/> > </rdf:Description> > <rdf:Description rdf:ID="w3cwebsite"> > <rtm:constitutedBy rdf:resource="http://www.w3c.org"/> > </rdf:Description> The problem here is that you've left out a valid assertion, which shows why you can't escape the ambiguity even with such specialized properties. I.e. <rdf:Description rdf:ID="w3cwebsite"> <rtm:indicatedBy rdf:resource="http://www.w3c.org"/> </rdf:Description> Even though it is fair to presume that one would not say <rdf:Description rdf:ID="w3c"> <rtm:constitutedBy rdf:resource="http://www.w3c.org"/> </rdf:Description> Eh? Patrick
Received on Monday, 25 November 2002 08:58:18 UTC