Re: compound propositions
From: Joe Thurbon <usenet_at_thurbon.com>
Date: Tue, 16 Mar 2010 18:08:33 +1000
Message-ID: <op.u9nh8kllq7k8pw_at_imac-3.local>
Date: Tue, 16 Mar 2010 18:08:33 +1000
Message-ID: <op.u9nh8kllq7k8pw_at_imac-3.local>
On Tue, 16 Mar 2010 05:12:55 +1000, paul c <toledobythesea_at_oohay.ac> wrote:
[...]
>
> One reason is that I still don't know how Codd's Information Principle
> applies to compound propositions, eg., " 'C1' is a customer OR 'C1' is a
> client". I can see that humans might imagine themselves capable of
> interpreting a relation (or to put it redundantly a relation value) as
> implitly mentioning that 'OR' connective (and dba's might so instruct
> their users). But where is it recorded? (or 'manifested'?) Eg., is it
> 'recorded' only in the ephemeral form of an expectation that a program's
> execution can't manifest given a single relation to operate on?
>
>