Re: quick comment on typed literals

>Hmmm... when I stumbled across that niggle, I wondered if you might 
>not introduce some "bottom" concept into the domain of 
>interpretation, so even invalid lexical forms have a denotation.
>
>#g

Nah, that doesn't work, Ive been there. In order to avoid warping the 
entire logic it has to be on the side rather than on the bottom, as 
it were. But I think I will indeed do that as it avoids some problems 
that Peter is worried about, and its simpler in any case.

Pat


>--
>
>At 06:36 PM 11/6/02 -0600, pat hayes wrote:
>
>>In case anyone was wondering, the reason that the inference
>>
>>aaa bbb "foo"^^ddd .
>>-->
>>aaa bbb _:xxx .
>>_:xxx rdf:type ddd .
>>
>>didnt get put into RDFS (but was left until the datatypes were 
>>introduced) is because, contrary to what I first thought, this 
>>inference DOES depend on access to datatype information, in order 
>>to check that 'foo' is a legal lexical form according to the 
>>datatype ddd.  So even though it doesnt depend on the particular 
>>value, it does need external datatype information to be valid.
>>
>>Just a quick explanation.
>>
>>Also, after Jos' question I guess I ought to either remove that 
>>comment or else put in a bit more explanation. Sigh.
>>
>>Pat
>>--
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>
>-------------------
>Graham Klyne
><GK@NineByNine.org>


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Received on Friday, 8 November 2002 10:35:16 UTC