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: Sun, 5 Jan 2025 14:20:30 -0800 Organization: A noiseless patient Spider Lines: 19 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> <38ef6c64fdd8c00427f6902b3560c158467c6505@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 23:20:31 +0100 (CET) Injection-Info: dont-email.me; posting-host="0a9b3b8b2325ec9f2ae161f5c632ce0f"; logging-data="1298991"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19vxSUeWj7CRmENvXVuhPiVcTukwbrcBmo=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:o3uVpz+qhqMH4Tlri0lDuUbKWvo= Content-Language: en-US In-Reply-To: Bytes: 2799 On 1/5/2025 3:11 AM, WM wrote: > On 04.01.2025 17:21, joes wrote: >> Am Sat, 04 Jan 2025 09:17:16 +0100 schrieb WM: >>> On 03.01.2025 21:29, joes wrote: >>>> Am Fri, 03 Jan 2025 20:48:57 +0100 schrieb WM: >>> >>>>> But removing every ordinal that you can define (and all its >>>>> predecessors) from ℕ leaves almost all ordinals in ℕ. >>>> No, N is exactly the set of those numbers. >>> ∀n ∈ ℕ_def: |ℕ \ {1, 2, 3, ..., n}| = ℵo contradicts your opinion. >> Where is the contradiction? > > You say that every natural number has ℵo successors. That is wrong > because ℕ \ {1, 2, 3, ...} = { }. Only every definable number has ℵo > successors. Define this: Why does a definition of you seem to wander off into kookville?