Re: what makes it true?
- From: Timothy Little <tim-usenet@xxxxxxxxxxxxxxxxxx>
- Date: Fri, 9 Sep 2005 23:15:31 +0000 (UTC)
Daniel Grubb wrote:
[ Definition of The natural numbers ]
> In ZFC, the smallest inductive set. I could turn that into a purely
> formal definition if desired. Someone who doesn't know what is meant
> by the set of natural numbers, yet has an intution about them would
> probably agree that this set gives a good rendition of their
> intuition, at least initially. It also nails down exactly what is
> meant by the term 'natural numbers'. That is what a definition in
> mathematics is for.
I disagree that it nails down exactly what is meant by the natural
numbers. There will be properties that remain undefined since their
corresponding propositions will be undecidable (though I don't happen
to have any examples).
- Tim
.
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