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 : 16. Oct 2024, 09:33:52
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <ventpf$255vi$5@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
User-Agent : Mozilla Thunderbird
On 14.10.2024 17:53, joes wrote:
Am Mon, 14 Oct 2024 15:34:59 +0200 schrieb WM:
On 14.10.2024 14:00, joes wrote:
Am Mon, 14 Oct 2024 12:35:56 +0200 schrieb WM:
>
False. n*2 > n for all numbers, even for infinite numbers.
Of course, and if the infinity is actual, they must already be in
there.
They cannot be there because doubling all elements of a set of naturals
doubles the space covered on the number line.
It does not. Changing the elements does not change their number.
There is a general rule not open to further discussion:
When doubling natural numbers we obtain natural numbers which have not been doubled.
In potential infinity we obtain more even natural numbers than have been doubled.
In actual infinity we double ℕ and obtain neither ℕ or a subset of ℕ.
Regards, WM