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Re: do bad datatype literals denote [was Re: Datatype test cases ...]

From: pat hayes <phayes@ai.uwf.edu>
Date: Wed, 20 Nov 2002 14:45:37 -0600
Message-Id: <p05111b13ba01a3cd2360@[10.0.100.86]>
To: Brian McBride <bwm@hplb.hpl.hp.com>
Cc: w3c-rdfcore-wg@w3.org

>At 17:27 20/11/2002 +0000, Jan Grant wrote:
>
>[...]
>
>>Righto. It looks like the state of play is that the test cases for
>>"duff" datatyped literals need a rethink, and I think I'm happier with
>>why and how, now. Since Pat's given us a concrete "this is all you get"
>>for the DT[xsd:integer]-closure from a duff datatyped literal, that's
>>enough to rebuild those test cases. I'll sleep on it and come back
>>tomorrow.
>
>Cool.  Just a reminder of
>
><a> <b> "foo"^^xsd:integer
>
>does not entail
>
><a> <b> _:v .
>_:v rdf:type _:c .
>_:c rdf:type rdfs:Datatype .
>
>and it does if we replace "foo" with "10".

Er...yes, but. If we are talking datatype entailment here, then you need
xsd:integer rdf:type rdfs:Datatype .
as an assumption; and if you have that then the last triple follows from it and
_:v rdf:type xsd:integer .
which follows from the original when "foo" is "10".

Pat

>
>I'm not pushing this; there may be a better way.  Just that you 
>don't have to do all the work on your own.
>
>Brian


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Received on Wednesday, 20 November 2002 15:45:52 EST

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