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Re: another typo in "RDF Semantics"

From: Ivan Herman <ivan@w3.org>
Date: Mon, 08 Mar 2010 13:49:11 +0100
Message-ID: <4B94F247.6010604@w3.org>
To: Story Henry <henry.story@bblfish.net>
CC: Semantic Web <semantic-web@w3.org>, Jeremy Carroll <jeremy@topquadrant.com>
In the meantime I saw that Jeremy has forwarded your mail to that list a
while ago (Jeremy, thanks!), so I will add this to the errata page.

Ivan

On 2010-3-8 13:38 , Ivan Herman wrote:
> Henry (and anybody else with a similar issue): I would prefer if such
> mails were sent to www-rdf-comments@w3.org and possibly cc to me. There
> is a procedure in
> 
> http://www.w3.org/2001/sw/RDFCore/errata
> 
> that we should follow; if there are no objections then I add these
> things to the errata page. If, at some point, we do a revision of the
> documents, this errata page will be one of the inputs...
> 
> Thanks a lot
> 
> Ivan
> 
> On 2010-3-5 12:09 , Story Henry wrote:
>> (perhaps the wrong list to send this to - let me know where would be better)
>>
>> In the RDF entailment lemma of http://www.w3.org/TR/rdf-mt/ it says
>>
>> [[
>> It is easy to see that J satisfies the first two RDF semantic conditions, by construction; for the triples introduced by rule rdf2 require that IEXTRH(rdf:type) contains <xml(lll),rdf:XMLLiteral> for every well-typed XML literal lll.
>> ]]
>>
>> The variable/name 'J' is not referred to anywhere else in the document. I suppose we are still speaking about RH here, as it is interpretations that satisfy graphs.
>>
>> Earlier on it says
>>
>> [[
>> add to S all the RDF axiomatic triples;
>> apply rule lg to any triple containing a well-typed XML literal until the graph is unchanged by the rule;
>> apply rule rdf2 until the graph is unchanged;
>> apply rule rdf1 until the graph is unchanged. 
>> ]]
>>
>> I think that should be "add to C", because we don't want to be changing S in the proof.
>>
>> It's easier to find typos than flaws in the reasoning. The last requires more thinking.
>> :-) 
>>
>> Henry
>>
>> Social Web Architect
>> http://bblfish.net/
>>
>>
> 

-- 

Ivan Herman, W3C Semantic Web Activity Lead
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Received on Monday, 8 March 2010 12:48:50 UTC

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