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Re: Spec doesn't talk about two-valued relationships

From: Jan Grant <Jan.Grant@bristol.ac.uk>
Date: Fri, 9 Mar 2001 11:14:30 +0000 (GMT)
To: Aaron Swartz <aswartz@upclink.com>
cc: RDF Interest <www-rdf-interest@w3.org>, RDF Comments <www-rdf-comments@w3.org>
Message-ID: <Pine.GSO.4.31.0103091112180.22296-100000@mail.ilrt.bris.ac.uk>
On Thu, 8 Mar 2001, Aaron Swartz wrote:

> The spec explains how to deal with relationships > 3 (rdf:value) but not
> those < 3 (i.e. two). I'd like to suggest we introduce two new properties:
>
> rdf:is

rdf:type; create a "predicate" class whose members have the appropriate
property.

> rdf:isNot

Yikes! Boom. That was the sound of the semantic web blowing up :-) This
leads to non-monotonicity, which doesn't sit particularly well with the
RDF worldview, as far as I can tell (no doubt the daml/oil people may
say differently)


-- 
jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/
Tel +44(0)117 9287163 Fax +44 (0)117 9287112 RFC822 jan.grant@bris.ac.uk
perl -e 's?ck?t??print:perl==pants if $_="Just Another Perl Hacker\n"'
Received on Friday, 9 March 2001 06:16:52 GMT

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