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: FromTheRafters Newsgroups: sci.math Subject: Re: Incompleteness of Cantor's enumeration of the rational numbers Date: Tue, 19 Nov 2024 11:44:48 -0500 Organization: Peripheral Visions Lines: 11 Message-ID: References: <157a949d-6c19-4693-8cee-9e067268ae45@att.net> <8165b44b-1ba5-429d-8317-0b043b214b53@att.net> <50333708eb8aac45243baf9fb69479379b783b63@i2pn2.org> Reply-To: erratic.howard@gmail.com MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Tue, 19 Nov 2024 17:44:52 +0100 (CET) Injection-Info: dont-email.me; posting-host="c65860b81c1be1d790afb6c2f66366c7"; logging-data="2037777"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/HTyMaru6YiTjGPA0+qUpm9OLWgQWfTWA=" Cancel-Lock: sha1:FI20vDkf+l1qY3q6ghHy5lbTvbo= X-ICQ: 1701145376 X-Newsreader: MesNews/1.08.06.00-gb Bytes: 2359 on 11/19/2024, WM supposed : > On 19.11.2024 13:05, joes wrote: >> Am Mon, 18 Nov 2024 23:16:22 +0100 schrieb WM: > >> |N\{0}| = |N| = Aleph_0 >> And |N\{2}| = Aleph_0. > > Hence ℵo cannot describe the number of elements. So, a notion of set size still works quite well. Maybe that is why the definitions are the way that they are, because they work.