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Re: [ontolog-forum] Ontological Assumptions of FOL

To: "[ontolog-forum]" <ontolog-forum@xxxxxxxxxxxxxxxx>
From: Ingvar Johansson <ingvar.johansson@xxxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 20 Mar 2007 10:26:52 +0100
Message-id: <45FFA8DC.4000600@xxxxxxxxxxxxxxxxxxxxxx>
Erick Antezana schrieb:
> Ingvar,
>     are there any articles or books that could be pointed out regarding 
> those issues (time/space is physical)?
> thanks,
> erick
>       (01)

Tell me a little more about what you are looking for, and then I will 
come back. By the way, I didn't make the point that "time/space is 
physical", which I happen to believe is false, even though General 
Relativity may be taken to imply such a view (i.e., space-time is a 
mass-energy field, and physical things are nothing else than lumps of 
mass-energy). My point is rather that if you think a little more in tune 
with common sense, classical physics, and molecular biology (which I 
think is much more relevant for today's information sciences than GR) 
then it seems natural to regard property instances as being 
spatiotemporally located without regarding them as in themselves being 
physical entities.    (02)

best wishes,
> Ingvar Johansson wrote:
>> Pat Hayes schrieb:
>>> Well, I can see a lot of problems with this. If 
>>> you believe, for example, that all spatiotemporal 
>>> entities are in some sense physical, you will get 
>>> into trouble. 
>> Let me from my philosophical corner just add one long sentence: No 
>> famous philosophical ontologist who posits physical (material) things in 
>> space and time has argued that everything that exists in space and time 
>> is physical (material); for instance, many claim that property instances 
>> *inhere in* physical things, but this does not mean that these 
>> spatiotemporal instances *are* physical entities.
>> /Ingvar J
>       (03)

Ingvar Johansson
IFOMIS, Saarland University
     home site: http://ifomis.org/
     personal home site:
     http://hem.passagen.se/ijohansson/index.html      (04)

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