Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: WM Newsgroups: sci.math Subject: Re: Incompleteness of Cantor's enumeration of the rational numbers (extra-ordinary) Date: Sun, 5 Jan 2025 11:37:12 +0100 Organization: A noiseless patient Spider Lines: 20 Message-ID: References: <98519289-0542-40ce-886e-b50b401ef8cf@att.net> <8e95dfce-05e7-4d31-b8f0-43bede36dc9b@att.net> <53d93728-3442-4198-be92-5c9abe8a0a72@att.net> <9c18a839-9ab4-4778-84f2-481c77444254@att.net> <6db7afa9-f1e1-4d2b-beba-a5fc7a8b8686@att.net> <53806d5c-f456-4c13-8506-24c0b9ab310e@att.net> <545edcf1a7ba488b6324128c9e9ec2bc8be18677@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Sun, 05 Jan 2025 11:37:11 +0100 (CET) Injection-Info: dont-email.me; posting-host="cfe6170884cd9660d3ba2d6ea153e630"; logging-data="1037649"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/Qo/HSCDc0q59EkyNbOtjqTWnMaiVp64A=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:bzvTl0nMP6q2R91BRAimoZf8ypk= Content-Language: en-US In-Reply-To: <545edcf1a7ba488b6324128c9e9ec2bc8be18677@i2pn2.org> Bytes: 2623 On 04.01.2025 14:17, Richard Damon wrote: > On 1/4/25 3:42 AM, WM wrote: >> >>> On 1/3/2025 2:48 PM, WM wrote: >>>> On 03.01.2025 19:46, Jim Burns wrote: >>> >>> All finite.ordinals removed from >>> the set of each and only finite.ordinals >>> leaves the empty set. >> >> But removing every ordinal that you can define (and all its >> predecessors) from ℕ leaves almost all ordinals in ℕ.∀n ∈ ℕ_def: |ℕ \ >> {1, 2, 3, ..., n}| = ℵo >> > And what keep you from "defining" the rest of the Natural Numbers. Try it yourself. Then you will see it. Regards, WM