On 07/01/2010 09:11 PM, Henry Story wrote: > > Social Web Architect > http://bblfish.net/ > > On 1 Jul 2010, at 21:03, Tim Finin wrote: > >> On 7/1/10 2:51 PM, Henry Story wrote: >>> ... >>> So just as a matter of interest, imagine a new syntax came along that >>> allowed literals in >>> subject position, could you not write a serialiser for it that turned >>> "123" length 3 . >>> Into >>> _:b owl:sameAs "123"; >>> length 3. >>> ? >>> So that really you'd have to do no work at all? >>> Just wondering.... >> >> Isn't owl:sameAs defined to be a relation between two >> URI references? > > Not sure.
It is, this won't work under OWL DL... In OWL Full if I think it will.
I asked about this recently on this list...
> In any case I suppose it would be simple to crete such an identity relation.
>
>> Even if not, it is symmetric and
>> would have the above imply {"123" owl:sameAs _:b .}
>
> It does indeed imply that, though you can't write it out like that
> in most serialisations, other than N3.
>
> And being able to write it out, makes it easy to explain what symmetry means.
>
> I think people keep confusing syntax and semantics for some reason, even on
> the semantic web.
>
> Henry
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