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Re: comments on http://www.w3.org/TR/2002/WD-rdf-schema-20021112/

From: Richard H. McCullough <rhm@cdepot.net>
Date: Wed, 27 Nov 2002 06:02:23 -0800
Message-ID: <001301c2961d$9cbd12d0$bd7ba8c0@rhm8200>
To: <www-rdf-comments@w3.org>, "Brian McBride" <bwm@hplb.hpl.hp.com>
Yes, I am assuming that two classes with the same members are the same class.

If that is not true of rdfs:Class, then either
1. you are talking about "currently known members" of a class
or
2. you are talking about two "different contexts", 
i.e., two different ways of viewing the same individuals, 
with two different sets of relations to other classes.

If 1. or 2. is not true, then you're not talking about reality.
============ 
Dick McCullough 
knowledge := man do identify od existent done
knowledge haspart list of proposition

  ----- Original Message ----- 
  From: Brian McBride 
  To: Richard H. McCullough ; www-rdf-comments@w3.org 
  Sent: Wednesday, November 27, 2002 5:39 AM
  Subject: Re: comments on http://www.w3.org/TR/2002/WD-rdf-schema-20021112/ 


  At 05:03 27/11/2002 -0800, Richard H. McCullough wrote:

  [...]
  >##### I agree.  I just got lazy.  I didn't have a printout of the 
  >document, and I was trying to manage by flipping between screens.  BTW, 
  >the document has no section numbers or page numbers.

  Right.  Will fix.

  [...]
  >##### OK, here's the proof that your definition of Class is contradictory.
  >##### I don't remember exactly what you said in the rdf interest discussion.
  >##### I think the basic idea was that "Class" is a class instead of a set 
  >of class names.
  >##### The problem with your definition comes out when you consider
  >##### the PROPER subclass relations between Class and Resource.
  >##### By the definition of Resource
  >#####        every class except Resource is a proper subclass of Resource

  I think this falls at the first hurdle.  I hearby define eg:Class, a class 
  that is not a proper subclass of rdfs:Resource.

     eg:Class      rdf:type        rdfs:Class .
     eg:Class      rdfs:subClassOf rdfs:Resource .
     rdfs:Resource rdfs:subClassOf eg:Class .

  Are you assuming that two classes with exactly the same members must be the 
  same class?  This is not true of rdfs:Class.

  Brian
Received on Wednesday, 27 November 2002 09:02:24 GMT

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