Re: circular relationships ok?

From: Jan Hidders <jan.hidders_at_REMOVETHIS.pandora.be>
Date: Sat, 04 Mar 2006 09:58:32 GMT
Message-ID: <cxdOf.293694$Hj5.9315432@phobos.telenet-ops.be>

vc wrote:
> Brian Selzer wrote:
>

>>[...]
>>if a and b are values
>>for A and B respectively in a tuple of R, a implies b and b implies a,
>>therefore, a iff b.

>
>
> That does not make any obvious sense. What do you mean by '[value] a
> implies [value] b' ? Are you considering only the Boolean domain ?

I think he means with "implies" something like "functionally determines", and with "iff" something like "has a one-to-one relationship with".

Jan Hidders

Received on Sat Mar 04 2006 - 03:58:32 CST