Re: c.d.theory glossary - RELATION
Date: Fri, 30 Apr 2004 18:39:04 +0300
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"mAsterdam" <mAsterdam_at_vrijdag.org> wrote in message
> x wrote:
> > Do some of the _facts_ about a (real or fantasized) world
> > tell something about _things_ in a (real or fantasized) world ?
> I really don't know. Thinking out loud:
> Say we have a history of axioms, and we would create a database
> for searching purposes - we'ld probably have no use for it
> if it didn't somehow represent persons or documents.
> An empty database - would it qualify as a proper database?
> A database without any facts about things - would it qualify?
I said SOME of ALL possible facts about the world. I was not talking about a particular database.
> > If yes, those _things_ are explicitly or implicitly represented
> > in relational model ? And by what ? Why not otherwise.
> Assuming yes about the first question:
> 'represent' would be 'explicit', imho.
> By what? By the propositions (by means of the predicates).
> As I said: just thinking out loud.
fact: John likes Mary.
Which proposition represents John ?
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