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Erwin wrote:
> > This is why PT is a /generalization/ of logic. It reduces to
> > logic when applied to truth-valued statements. Just as gamma
> > reduces to factorial for natural arguments. (Again no quibbles
> > about offset by 1 etc).
> >
>
> You mean like :
>
> AND (p1, p2) === p1*p2
P(p1 and p2) is not equal P(p1)*P(p1) in general, so no such 'generalization' is possible.
> NOT (p1) === 1 - p1
> OR (p1 , p2) === 1 - (1 - p1) * (1 - p2)
> and all the rest of the equivalences ?
>
> Wouldn't this lead to a form of logic that is at least as hard to talk
> about as 3- or more-value logics ?
Multivalued logics are truth functional although their utility for data management is not completely clear.
> And thus inattractive as a
> foundation to build our data management mechanisms on ?
Received on Fri Jun 09 2006 - 08:42:54 CDT