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Re: How big is infinity?

Subject: Re: How big is infinity?
From: "Randy Poe"
Date: 31 Aug 2006 11:51:44 -0700
Newsgroups: sci.logic, sci.math
Lester Zick wrote:
> On 30 Aug 2006 17:24:44 -0700, "MoeBlee" <jazzmobe@xxxxxxxxxxx> wrote:
> Who cares? We have it from Virgil that axioms and definitions in
> modern math aren't true.

You're circling closer to what Virgil (and everyone familiar
with axiomatic mathematics) is saying, but not there yet.

A definition is a shorthand. It is a name given to a concept,
generally because the name is shorter than the description
of the concept.

"Definitions aren't true" sounds like they have a truth value
of "false". In fact they don't have a truth value. They're just
symbolic substitutions.

Axioms do have a truth value. They are true by assumption,
if consistent. I would say they are true by assumption even
if not consistent but in that case there may be some room
for different conventions.


                   - Randy


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