Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!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 (extra-ordinary) Date: Thu, 9 Jan 2025 17:19:13 -0800 Organization: A noiseless patient Spider Lines: 30 Message-ID: References: <8e95dfce-05e7-4d31-b8f0-43bede36dc9b@att.net> <53d93728-3442-4198-be92-5c9abe8a0a72@att.net> <9c18a839-9ab4-4778-84f2-481c77444254@att.net> <8ef20494f573dc131234363177017bf9d6b647ee@i2pn2.org> <66868399-5c4b-4816-9a0c-369aaa824553@att.net> <417ff6da-86ee-4b3a-b07a-9c6a8eb31368@att.net> <07258ab9-eee1-4aae-902a-ba39247d5942@att.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Fri, 10 Jan 2025 02:19:15 +0100 (CET) Injection-Info: dont-email.me; posting-host="28cf7ca1c92d04cd42c0770896dc3b1b"; logging-data="3815882"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/VPcmJlWLQ+3rlJXR/Z3zMc6O1k5c6wys=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:ejOuxuwkvK0d3+jGl6HpfOKp+aY= Content-Language: en-US In-Reply-To: Bytes: 2823 On 1/9/2025 5:15 PM, Moebius wrote: > Am 09.01.2025 um 22:12 schrieb Chris M. Thomasson: >> On 1/9/2025 8:18 AM, WM wrote: >>> On 09.01.2025 10:56, FromTheRafters wrote: >>>> WM explained : >>> >>>>> The set {1, 2, 3, ...} is smaller by one element than the set {0, >>>>> 1, 2, 3, ...}. >>>> >>>> Both sets are equal in size >>> >>> No. Both sets appear equal (although everybody can see that they are >>> not) when measured by an insufficient tool. >> >> { 0, 1, 2, 3, ... } = { 1 - 1, 2 - 1, 3 - 1, 4 - 1, ... } > > Really? :-) > Well, wrt their elements are equal to each other. Fair enough? ;^o { 0, 1, 2, 3, ... } = { 1 - 1, 2 - 1, 3 - 1, 4 - 1, ... } where: { 0 = 1 - 1, 1 = 2 - 1, 2 = 3 - 1, 3 = 4 - 1, ... } ? Kind of okay? They both have the same number of elements.