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RE: RDF Issue rdfms-identity-of-statements

From: Danny Ayers <danny666@virgilio.it>
Date: Mon, 11 Mar 2002 23:44:55 +0100
To: "Graham Klyne" <GK@ninebynine.org>
Cc: <www-rdf-comments@w3.org>
Message-ID: <EBEPLGMHCDOJJJPCFHEFMENEFCAA.danny666@virgilio.it>
Hi Graham,

>This is fine for me.  (I think my original comment has been rather
>overtaken by developments.)

Sorry, but what developments in particular have you in mind? - my following
of the wg is pretty sporadic, and I'm not sure I'm clear on the reasoning
behind this resolution. The telecon minutes aren't much help :

  Discussion of this entailment; FrankM proposed that the answer is
  NO.  Some people are confused or don't care too much about it.

  APPROVED: Answer to above entailment is NO.

Sounds a bit like it was getting close to pub-closing time (globally)...


>At 02:50 PM 3/11/02 +0000, Brian McBride wrote:
>>   http://lists.w3.org/Archives/Public/www-rdf-interest/2000Sep/0032.html
>>you raised an issue which was captured in
>>   http://www.w3.org/2000/03/rdf-tracking/#rdfms-identity-of-statements
>>There is a question whether or not there can be two different statements
>>with the same subject, object and property. Most people seem to say "no".
>>I have suggested that this should be allowed because it can be expressed
>>in reified RDF statements and that there should be a 1:1 correspondence
>>between what can be expressed in an RDF model and its reification.
>>As recorded in
>>   http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2002Feb/0476.html
>>the RDFCore WG has resolved:
>>    <stmt1> <rdf:type> <rdf:Statement> .
>>    <stmt1> <rdf:subject> <subject> .
>>    <stmt1> <rdf:predicate> <predicate> .
>>    <stmt1> <rdf:object> <object> .
>>    <stmt2> <rdf:type> <rdf:Statement> .
>>    <stmt2> <rdf:subject> <subject> .
>>    <stmt2> <rdf:predicate> <predicate> .
>>    <stmt2> <rdf:object> <object> .
>>    <stmt1> <property> <foo> .
>>    does not entail:
>>    <stmt2> <property> <foo> .
>>This is a formal way of saying that two reified statements with the same
>>subject, predicate and object can be different resources.
>>Please could you respond to this message, copying www-rdf-comments@w3.org
>>indicating whether this is an acceptable resolution of this issue.
>>Brian McBride
>>RDFCore co-chair
>Graham Klyne
Received on Monday, 11 March 2002 18:40:05 UTC

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