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Re: [ontolog-forum] Ontology, Information Models and the 'Real World': C

To: Waclaw Kusnierczyk <Waclaw.Marcin.Kusnierczyk@xxxxxxxxxxx>
Cc: "[ontolog-forum]" <ontolog-forum@xxxxxxxxxxxxxxxx>
From: Pat Hayes <phayes@xxxxxxx>
Date: Sun, 27 May 2007 23:05:21 -0700
Message-id: <p06230903c28020cc0a28@[192.168.1.4]>
>Pat Hayes wrote:
>>   take a look
>>
>  > http://www.ihmc.us:16080/users/phayes/context/ContextMereology.html
>
>There, you say:
>
>"the parthood relationship, which we will assume is transitive,
>asymmetric and reflexive"    (01)

The property I was meaning to indicate is that 
described by the axiom a3b immediately below, viz.
(a<b & b<a) implies a=b. I apologize if I used 
the wrong terminology. The text is in any case 
subservient to the axioms provided.    (02)

Pat    (03)

>Can you give an example of a relation that is both asymmetric and
>reflexive (other than the vacuously asymmetric and reflexive empty
>relation)?
>
>vQ
>
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