Re: Questioning the defintions of set and element.



On Thu, 1 May 2008 16:47:30 +0100, "Mark" <user@xxxxxxxx> wrote:


"[...]

[snip N/A stuff]

I don't see how a logical theory can be based on the undefined.

Then you haven't thought it through. It's obviously impossible
to define _everything_. Whatever the list of definitions is,
there is a first definition. And the terms in that definition
must be undefined, because there are no definitions yet at
that point.


David C. Ullrich
.



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