- From: Jeremy Carroll <jjc@hpl.hp.com>
- Date: Tue, 29 May 2007 15:07:48 +0100
- To: Ulrike Sattler <sattler@cs.man.ac.uk>
- CC: Matt Williams <matthew.williams@cancer.org.uk>, Ian Horrocks <horrocks@cs.man.ac.uk>, Owl Dev <public-owl-dev@w3.org>, Semantic Web <semantic-web@w3.org>, Bijan Parsia <bparsia@cs.man.ac.uk>
Ulrike Sattler wrote:
> It is not too difficult to see that we can construct an OWL ontology all
> of whose models are infinite (let me know if you want to see an example
> of such an ontology), e.g., where each model contains an infinite chain
> of fathers *in addition to the fathers that are explicitly present in
> the ontology,
Hmmm, I would like to see a small ontology which is necessarily infinite.
I've just being looking with google, and found my own
http://www.w3.org/TR/owl-test/dl-900-arith#description-logic-908
which I believe hinges on
2*3*n = 5*n & n>0
implies n >= aleph0,
but I am still trying to understand it.
thanks for a pointer
Jeremy
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Received on Tuesday, 29 May 2007 14:08:27 UTC