Re: Spec doesn't talk about two-valued relationships

On Fri, 9 Mar 2001, Aaron Swartz wrote:

> Graham Klyne <GK@NineByNine.org> wrote:
>
> >> It's true that rdf:type gets close to this,
> >> but there is a general need for negation in this case, even without getting
> >> into logic and all that.
> > I think that's where DAML-ONT (or whatever it's called these days) comes in
> > to play.
>
> Perhaps we can add this to DAML -- I know they have disjoint, but I don't
> think that's the same as opposite...

Well, you could have an equivalent class to "everything" that was the
disjoint superclass of "X" and "notX".


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jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/
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Received on Saturday, 10 March 2001 06:25:06 UTC