Talk:Aleph-0

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Revision as of 16:02, 17 June 2009 by imported>Peter Schmitt (→‎Something missing?: new section)
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 Definition:  Cardinality (size) of the set of all natural numbers. [d] [e]
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 Workgroup category:  Mathematics [Categories OK]
 Talk Archive:  none  English language variant:  British English

Rewritten

Completely rewrite:

Avoid duplication of countable set (for basic explanation)
Technical material should go into cardinal number for context
Removed a general paragraph which does not fit here:
"Greek mathematicians first grappled with logical questions about infinity (See Zeno and Archimedes) and Isaac Newton used inadequately defined 'infinitesimals' to develop the calculus; however over centuries the word infinity had become so loaded and poorly understood that Cantor himself preferred the term transfinite to refer to his family of infinities."

Peter Schmitt 22:55, 11 June 2009 (UTC)

Something missing?

There is a lot more to say about alephs, but I think that this belongs to cardinal number where it can be treated in context. Peter Schmitt 22:02, 17 June 2009 (UTC)

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