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Re: need to determine what RDF is

From: Jim Hendler <hendler@cs.umd.edu>
Date: Thu, 30 May 2002 13:47:32 -0400
Message-Id: <p05111723b91c15f3d33c@[]>
To: Brian McBride <bwm@hplb.hpl.hp.com>, "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>
Cc: danbri@w3.org, www-rdf-comments@w3.org, em@w3.org

At 5:34 PM +0100 5/30/02, Brian McBride wrote:
>At 11:09 30/05/2002 -0400, Peter F. Patel-Schneider wrote:
>>The ``deep'' issue is that there continues to be claims that RDF
>>encompasses information not encoded in RDF graphs (or in RDF-defined
>>documents that can be transformed into RDF graphs).   The wording
>>associated with rdfs:comment appears to be capable of supporting this view,
>>although, as Pat Hayes has pointed out, it really does not.  I suppose that
>>this could be considered to be just wordsmithing, but wordsmithing taking
>>into account the implicit view of RDF.
>One of the techniques we have found particularly useful in RDFCore 
>has been reducing issues to one or more test cases.  Do you think it 
>might be possible to create a test case for this issue.
>I'm maybe beginning to get a glimmer of what the problem is, but I'm 
>not sure.  Ramblings that are certainly technically incompetent but 
>illustrate an idea follow.  I think I'm struggling to make more 
>precise a phrase of Peter's "is not part of RDF".
>Postulate the existence of Universal Entailment (since "RDF 
>entailment" already means something else).  The Universal Entailment 
>of an RDF graph is the graph which includes all the triples that a 
>processor is entitled to conclude from the original graph.
>I think Peter's position is that Universal Entailment contains only 
>triples entailed by RDF(S) entailment.

please forgive me - but I have removed w3c-semweb-cg from this mail 
and hope you all will do same - rdf-comments seems like a fine place 
for the discussion to occur and for the rest of us to read it --  JH

Professor James Hendler				  hendler@cs.umd.edu
Director, Semantic Web and Agent Technologies	  301-405-2696
Maryland Information and Network Dynamics Lab.	  301-405-6707 (Fax)
Univ of Maryland, College Park, MD 20742	  240-731-3822 (Cell)
Received on Thursday, 30 May 2002 13:51:59 UTC

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