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 : 17. Oct 2024, 19:14:07
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <verk5f$2r6kj$2@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 16.10.2024 21:48, FromTheRafters wrote:
there is closure in the set of naturals for addition.
There is a general rule not open to further discussion:
When doubling natural numbers we obtain even numbers which have not been doubled.
In potential infinity we obtain more even natural numbers than have been doubled. (Closure)
In actual infinity we double ℕ and obtain neither ℕ or a subset of ℕ.
Regards, WM