- From: Richard H. McCullough <rhm@cdepot.net>
- Date: Wed, 20 Nov 2002 07:58:56 -0800
- To: "Richard H. McCullough" <rhm@cdepot.net>, "David Menendez" <zednenem@psualum.com>, "Sandro Hawke" <sandro@w3.org>
- Cc: <www-rdf-interest@w3.org>
- Message-ID: <000b01c290ad$bbecde80$bd7ba8c0@rhm8200>
I suppose it would be less confusing to say that Property is the class that all properties are subclasses of. In the sense used in RDFS, every property is a class. For example, hasSex is the class of pairs [person; sex] and its individuals are [John Doe; male], [Jane Doe, female], ... ============ Dick McCullough knowledge := man do identify od existent done knowledge haspart list of proposition ----- Original Message ----- From: Richard H. McCullough To: David Menendez ; Sandro Hawke Cc: www-rdf-interest@w3.org Sent: Wednesday, November 20, 2002 7:24 AM Subject: Re: RDF vocabulary definitions Everything is either an Individual or a Class. Property is a Class, and it is the property which all properties are subproperties of. ============ Dick McCullough knowledge := man do identify od existent done knowledge haspart list of proposition ----- Original Message ----- From: Sandro Hawke To: David Menendez Cc: www-rdf-interest@w3.org Sent: Wednesday, November 20, 2002 7:01 AM Subject: Re: RDF vocabulary definitions > At 10:48 PM -0500 2002-11-19, Sandro Hawke wrote: > >These are true though, I think: > > > > x rdf:type rdfs:Property. > > iff > > x rdfs:subPropertyOf rdfs:Property. > > > >and > > > > x rdf:type rdfs:Class. > > iff > > x rdfs:subClassOf rdfs:Resource. > > > >and that little asymmetry was confusing me. > > The second implication is true (it's rdfs7a), but I don't believe the > first one is. As far as I'm aware, rdf:Property is a class, not a > property, so it wouldn't have sub-properties. Of course you're right again. I give up. :-) (I really shouldn't try to do think when I'm sitting in meetings.) (Is there a name for the Property which all Properties are sub-properties of? I've heard people joke that it's rdfs:seeAlso, but is it defined as something?) -- sandro
Received on Wednesday, 20 November 2002 10:59:00 UTC