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RE: Subjects as Literals

From: Michael Schneider <schneid@fzi.de>
Date: Tue, 6 Jul 2010 16:30:06 +0200
Message-ID: <0EF30CAA69519C4CB91D01481AEA06A001F07F87@judith.fzi.de>
To: "Toby Inkster" <tai@g5n.co.uk>
Cc: "Linked Data community" <public-lod@w3.org>, "Semantic Web" <semantic-web@w3.org>, "Pat Hayes" <phayes@ihmc.us>
Toby Inkster wrote:

>On Tue, 6 Jul 2010 14:03:19 +0200
>"Michael Schneider" <schneid@fzi.de> wrote:
>
>> So, if
>>
>>     :s "lit" :o .
>>
>> must not have a semantic meaning, what about
>>
>>     "lit" rdf:type rdf:Property .
>>
>> ? As, according to what you say above, you are willing to allow for
>> literals in subject position, this triple is fine for you
>> syntactically. But what about its meaning? Would this also be
>> officially defined to have no meaning?
>
>It would have a meaning. It would just be a false statement. 

What do you mean by "false statement"? That it is contradictory, as in OWL
for

      ex:x owl:differentFrom ex:x .

? If so, then this would be a very strong meaning. Quite different from
having no meaning at all.

>The same as the following is a false statement:
>
>	foaf:Person a rdf:Property .

Under which semantics is this a false statement?

Michael

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Received on Tuesday, 6 July 2010 14:30:40 UTC

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