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