- From: Sampo Syreeni <decoy@iki.fi>
- Date: Tue, 24 Jun 2003 21:59:33 +0300 (EEST)
- To: Chris Catton <chris.catton@zoology.oxford.ac.uk>
- cc: www-rdf-interest@w3.org
On 2003-06-24, Chris Catton uttered to www-rdf-interest@w3.org: >I'd like to define a class of first_cousins as the class of individuals >that share the same grandparents with another individual who is not also >their sibling. That's a bit too difficult for me. I think what made you resort into such a definition is that your intuition fails with the sibling relation. If that is part of your ontology, you need to note that it isn't a transitive relation: me being a sibling of my brother and vice versa doesn't imply I'm my own sibling. So in this framework a first cousin is just a child of someone's parents' siblings. The logic easily extends to further cousins, of course. And pray, use N3. The XML serialisation is a severe pain in the ass. ;) -- Sampo Syreeni, aka decoy - mailto:decoy@iki.fi, tel:+358-50-5756111 student/math+cs/helsinki university, http://www.iki.fi/~decoy/front openpgp: 050985C2/025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2
Received on Tuesday, 24 June 2003 14:59:37 UTC