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Re: Feedback request

From: Patrick Stickler <patrick.stickler@nokia.com>
Date: Fri, 1 Nov 2002 10:03:25 +0200
Message-ID: <005701c2817d$27d39cf0$2380720a@NOE.Nokia.com>
To: <w3c-rdfcore-wg@w3.org>, "ext pat hayes" <phayes@ai.uwf.edu>



[Patrick Stickler, Nokia/Finland, (+358 40) 801 9690, patrick.stickler@nokia.com]


----- Original Message ----- 
From: "ext pat hayes" <phayes@ai.uwf.edu>
To: <w3c-rdfcore-wg@w3.org>
Sent: 01 November, 2002 05:28
Subject: Feedback request


> 
> Quick request(s) for feedback. There are 5 parts to this message.
> 
> Please say if you think that any of the following entailments should 
> NOT be valid in RDF or RDFS, or have any problems with the reasoning 
> sketched. Obviously "10" can be any string.
> 
> 1. (RDF)
> aaa ppp "10" .
> -->
> aaa ppp _:xxx .
> 
> 2. (RDF)
> aaa ppp "10"^^datatypefoo .
> -->
> aaa ppp _:xxx .
> 
> 3. (RDF)
> aaa ppp "10"@lang .
> -->
> aaa ppp _:xxx .

I'm confused. Are you saying that all three literals above
denote the same thing _:xxx or is each graph to be taken
in isolation? I'm presuming the latter. If so, then it 
looks OK to me.
 
>  From the above, and assuming bare literals denote themselves, then IR 
> must contain all bare literals (cuzof 1) and all values that any 
> datatype can map them into (cuzof 2) and maybe all pairs of all those 
> things with lang tags (not yet sure about that last one). So we might 
> as well say that IR contains all of LV, seems to me. In which case we 
> would get
> 
> 4. (RDFS)
> rdfs:Literal rdfs:subClassOf rdf:Resource .
> 
> 5. (RDFS)
> aaa rdf:type rdfs:Datatype .
> --->
> aaa rdfs:subClassOf rdfs:Literal .

OK.

> ------
> 
> Terminology question: now we have lists, should the term 'container' 
> be understood to include lists as well as seqs, bags and alts? 

I don't see why not. The all are, of course, containers even if
we specify the details of some more than others.

> If so, 
> does anyone have an suggestion for a generic term for the older 
> containers? (Simple containers? Open containers? Bushy containers?)
> 
> ------
> 
> Can anyone fill in the blank for
> 
> rdfs:comment rdfs:range ??? .

rdfs:Literal

I.e. a comment can be an inlined literal, a typed literal, or 
an XML literal.


> 6.
> aaa ppp "10"^^datatypefoo .
> --->
> aaa ppp _:xxx .
> _:xxx datatypefoo "10"
> 
> or not? If so, how about the reverse entailment??

We should not define this entailment. If some application
wishes to do so, fine. But RDF datatyping does not define
datatyping properties.

   ddd rdf:type rdfs:Datatype .

does NOT entail

   ddd rdf:type rdf:Property .

Patrick
Received on Friday, 1 November 2002 03:05:53 EST

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