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RE: SUO: On the supreme supertype




Dear John,

I also think entity is probably the best choice. In EPISTLE we use thing
because entity is a reserved word in the EXPRESS language (meaning entity
type) so we had to use something else.

But I'm not precious about names, provided the usage is defined. Although I
prefer not to use terms that have a somewhat different popular meaning than
that which is defined.

Regards  
      Matthew
============================================
Matthew West
Operations & Asset Management
Shell Services International
H3229, Shell Centre, London, SE1 7NA, UK.
Tel: +44 207 934 4490 Fax: 7929 
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E-mail: Matthew.R.West@is.shell.com
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============================================

> -----Original Message-----
> From: John F. Sowa [mailto:sowa@bestweb.net]
> Sent: 20 February 2001 13:55
> To: Aldo Gangemi; Philip Jackson; standard-upper-ontology@ieee.org
> Subject: Re: SUO: On the supreme supertype
> 
> 
> 
> In mathematics, there is another tradition that solves this
> problem:  the two "thumbtack symbols".  The top one looks like
> a san-serif letter T, and the bottom one looks like an upside
> down T.  Those are the two symbols used for the top and bottom
> of a lattice, and those are the ones that I used for the top
> and bottom of all the lattices in my 1984 book and my 2000 book.
> 
> Those symbols have the advantage of being language-neutral,
> international, and traditional in mathematics.  The primary
> objection is that many people wanted a pronounceable word
> for them.  So I suggested Entity as a synonym for T, which
> is much more international than "thing".
> 
> >>On further thought, I'd like to suggest a different 
> possible name for the
> 
> >>supreme supertype, other than "thing" or "entity" which seem to be
> >>traditional...
> >>
> >>Perhaps a better word for the supreme supertype could be 
> "referent", meaning
> 
> >>that which can be referenced.
> 
> The word "referent" is already widely used for a particular
> that is being referred to in any particular sentence.  It would
> be confusing to use it for the supreme universal of all
> universals.
> 
> An even more traditional term is "Supreme Genus", which has
> been used for over 600 years for the top level of the Tree
> of Porphyry.
> 
> But I would suggest the more neutral T.  Those people who feel
> a need to verbalize it can say "top type".
> 
> John Sowa
>