Sujet : Re: Incompleteness of Cantor's enumeration of the rational numbers
De : wolfgang.mueckenheim (at) *nospam* tha.de (WM)
Groupes : sci.mathDate : 18. Nov 2024, 17:58:20
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vhfrnd$1adlc$2@dont-email.me>
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On 17.11.2024 21:59, FromTheRafters wrote:
It is sometimes better to think of cardinality as a number indicating a notion of 'set size' rather than a notion of 'number many'. For finite sets these two notions merge.
In the infinite they differ:
ℵo is not the same as |ℕ| although |ℕ| is in the set of numbers described by ℵo.
Regards, WM