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Re: review of July 15 draft of RDF Semantics document

From: pat hayes <phayes@ihmc.us>
Date: Tue, 5 Aug 2003 11:24:34 -0500
Message-Id: <p06001a0abb558a40a6d5@[10.0.1.3]>
To: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>
Cc: www-rdf-comments@w3.org

>From: pat hayes <phayes@ihmc.us>
>Subject: Re: review of July 15 draft of RDF Semantics document
>Date: Tue, 29 Jul 2003 02:31:46 -0500
>
>[...]
>
>>  >>  >Silliness:
>>  >>  >
>>  >>  >rdf-interpretations do not just ``impose extra semantic 
>>conditions on crdfV
>>  >>  >and typed literals with the type rdf:XMLLiteral''.  Why not 
>>just say that
>>  >>  >rdf-interpretations impose extra semantic conditions?
>>  >>
>>  >>  Because this draws attention to the fact that they do not impose any
>>  >>  extra conditions on the rest of the RDF vocabulary.
>>  >
>>  >Well, sort of, but I consider the use of crdfV misleading.
>>
>>  Im afraid I disagree.
>>
>>  >It is true that there are rdf-interpretations that do not impose conditions
>>  >on (the denotation of) rdf:subject.  However, any rdf-interpretation that
>>  >includes rdf:subject in its vocabulary does impose conditions on (the
>>  >denotation of) rdf:subject.
>>
>>  Only those which arise from its being a simple
>>  interpretation. The text uses the word "extra
>>  semantic conditions" to indicate this distinction.
>
>Huh?  One of the RDF axiomatic triples is
>	rdf:subject rdf:type rdf:Property .
>Doesn't this impose an ``extra semantic condition'' on rdf-interpretations
>that is on something outside the central RDF vocabulary?
>

You could say that, indeed. Let me rephrase the remark: they do not 
impose any extra semantic conditions *which cannot be expressed in 
RDF itself* on the rest of the RDF vocabulary.

Pat



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Received on Tuesday, 5 August 2003 12:28:01 GMT

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