Sujet : Re: How many different unit fractions are lessorequal than all unit fractions? (infinitary)
De : wolfgang.mueckenheim (at) *nospam* tha.de (WM)
Groupes : sci.mathDate : 04. Nov 2024, 12:07:35
Autres entêtes
Organisation : A noiseless patient Spider
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On 03.11.2024 22:21, Richard Damon wrote:
But Induction *IS* valid for all Natural Numbers.
Only for all natnumbers which can be defined and which belong to a finite initial segment which is followed by ℵo natnumbers most of which you cannot define.
By induction you can prove the sum n(n+1)/2 for every initial segment 1+2+3+...+n. But not for all natural numbers.
Regards, WM