Path: ...!weretis.net!feeder9.news.weretis.net!news.quux.org!eternal-september.org!feeder2.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: "Chris M. Thomasson" Newsgroups: sci.math Subject: Re: Incompleteness of Cantor's enumeration of the rational numbers Date: Fri, 22 Nov 2024 12:37:12 -0800 Organization: A noiseless patient Spider Lines: 15 Message-ID: References: <094dadad718eaa3827ad225d54aaa45b880dd821@i2pn2.org> <3399a95e386bc5864f1cfcfc9f91f48366e0fed2@i2pn2.org> <0d551828411c0588000796fa107a16b1e23a866c@i2pn2.org> <74bdc0f14fd0f2c6bfd9ac511a37f66b41948ac4@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Fri, 22 Nov 2024 21:37:13 +0100 (CET) Injection-Info: dont-email.me; posting-host="79196014c4e45cad6c599c3b0dfb23ec"; logging-data="1412152"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/X3bGzVnuaoqGojYvskArRM1UHAuSI0OM=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:6uYvAZT8yK4DYJUHhznlc8dqKaU= In-Reply-To: Content-Language: en-US Bytes: 2716 On 11/22/2024 6:51 AM, WM wrote: > On 22.11.2024 13:32, joes wrote: > > Am Fri, 22 Nov 2024 13:00:52 +0100 schrieb WM: > > >>>>>>>> The number of ℕ \ {1} is 1 less than ℕ. > >>>>>>> And what, pray tell, is Aleph_0 - 1 ? > >>>>>> It is "infinitely many" like Aleph_0. > >>> Thanks for agreeing with |N| = |N\{0}|. > >> Of course. ℵo means nothing but infinitely many. > > Good. Then we can consider those sets to have the same number. > > > That is the big mistake. It makes you think that the sets of naturals > and of prime numbers could cover each other. prime numbers are a sub set of the naturals. They are both infinite.