- 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