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SV: property inference rule

From: Jens Jakob Andersen, PDI <jens.jakob.andersen@post.dk>
Date: Tue, 6 Nov 2001 11:45:36 +0100
Message-ID: <E6CDEF4DFA31524D83641C6B9550AF77D33DB9@exmbxa501.postdk.net>
To: "Nikita Ogievetsky" <nogievet@cogx.com>, <www-rdf-interest@w3.org>
Hi Nikita
 
I remember something from my Relational Algebra; as well as 3-NF data
modelling.
 
Here is a good URL:
http://dimacs.rutgers.edu/Workshops/Security/program2/jim/node3.html
 
JJ
 

-----Oprindelig meddelelse-----
Fra: Nikita Ogievetsky [mailto:nogievet@cogx.com]
Sendt: 5. november 2001 18:33
Til: www-rdf-interest@w3.org
Emne: property inference rule


Does anybody know a way to express 
an inference rule that from:
 
<person rdf:ID="A">

    <hasBrother>

        <person>
            <hasDaughter rdf:resource="#C"/>

        </person>
    </hasBrother>
</person>
 
follows:
 
<person rdf:ID="A">

    <hasNiece rdf:resource="#C">
</person>
 
In other words:
 
{hasNiece} = {hasBrother X hasDaughter}
 
I had been pondering over this for some time
and could not find an answer neither myself nor by asking some other
people.
 
Thanks,
 
--Nikita.
Received on Tuesday, 6 November 2001 05:46:29 GMT

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