Re: Cantor's definition of set

On Sat, 27 Oct 2007 00:15:14 +0200, G. Frege <nomail@invalid> wrote:

A typo.


A sequence and a collection are mutually exclusive I would have
thought - a collection is indifferent to order.

Yes, one might think so, agree. But this thought is _provable_ wrong.
~~

For a starter you might google for the term "ordered pair". (Yes, we can
define a so called /ordered pair/ in set theory.)


See:
http://en.wikipedia.org/wiki/Ordered_pair
http://planetmath.org/encyclopedia/OrderedPair.html


F.

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