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: Wed, 20 Nov 2024 18:04:10 -0500 Organization: Peripheral Visions Lines: 27 Message-ID: References: <8165b44b-1ba5-429d-8317-0b043b214b53@att.net> 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: Thu, 21 Nov 2024 00:04:15 +0100 (CET) Injection-Info: dont-email.me; posting-host="bc0209013df7ddbc518d0c69506880c6"; logging-data="338745"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18mAvYRjG46J309eLVLP9BltvyZlncYdAg=" Cancel-Lock: sha1:9z4bpcIdNRXLUfwMs4VVz5mMkPA= X-ICQ: 1701145376 X-Newsreader: MesNews/1.08.06.00-gb Bytes: 3083 WM explained on 11/20/2024 : > On 20.11.2024 21:08, FromTheRafters wrote: >> WM was thinking very hard : >>> On 20.11.2024 15:15, FromTheRafters wrote: >>>> WM explained on 11/20/2024 : >>>>> set theory claims that all natural numbers can be counted to such that >>>>> no successors remain. >>>> >>>> No it doesn't. >>> >>> Even all rationals and algebraics. >>> >>> "we get the epitome (ω) of all real algebraic numbers [...] and with >>> respect to this order we can talk about the nth algebraic number where not >>> a single one of this epitome has been forgotten" >>> "The infinite sequence thus defined has the peculiar property to contain >>> the positive rational numbers completely, and each of them only once at a >>> determined place" >> >> Which doesn't support your claim at all. No mention whatsoever of no >> successors remaining. > > "not a single one of this epitome has been forgotten" means not a single one > remaining, let alone more than one. No it doesn't, it means the system used to list them is inherently unable to miss any.