RE: Defining properties between classes

Bijan Parsia answered to Loris Bozzato:

>Hello,
>
>On 31 Jan 2009, at 03:22, Loris Bozzato wrote:
>[snip]
>> I'd like to model the fact that every instance of a class C has as
>> value of the property P every instance of a class D.
>
>Really? Where D is unconstrained (i.e., may have arbitrary members)?

Hm, sounds to me as if P should be a super property of the Cartesian product
of C and D?

@Loris: I remember having found a way to define Cartesian products in terms
of OWL 2 in this forum a while ago:

  <http://lists.w3.org/Archives/Public/public-owl-dev/2007OctDec/0074.html>

Maybe this is what you want, but note that it is a pretty complicated
construction, and it's not very intuitive, IMHO. (Also note that this was
never intended to be of any practical value. ;-))

Cheers,
Michael

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