Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: FromTheRafters Newsgroups: sci.math Subject: Re: The set of necessary FISONs Date: Fri, 31 Jan 2025 08:12:04 -0500 Organization: Peripheral Visions Lines: 16 Message-ID: References: <27377646-137a-4f8f-a7bb-a75707b2da96@att.net> <4d349964-211f-42f1-936f-81c22ae54cb5@att.net> <6e0c8ab2-402a-43a5-a348-0c727eae6a2e@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: Fri, 31 Jan 2025 14:12:12 +0100 (CET) Injection-Info: dont-email.me; posting-host="9274ab2b78f5dd5f213264c9b0375417"; logging-data="3704204"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/mCoaajxpzu+Gq2TnTYed6QaANLVUWE6w=" Cancel-Lock: sha1:VGMNWUYQq8FvWJ/GiKUC9Dgkucs= X-ICQ: 1701145376 X-Newsreader: MesNews/1.08.06.00-gb Bytes: 2460 WM formulated on Friday : > On 31.01.2025 11:43, FromTheRafters wrote: >> WM explained : >>> On 31.01.2025 11:02, FromTheRafters wrote: >>> >>>> Ordinals aren't guaranteed to increase. >>> >>> What ordinal has not a greater successor? >>> Ordinals n are well-ordered. The distance from 0 is n - 0 = n. >> >> Starting with omega, they are all countably infinite until you reach the >> uncountably infinite. > > ω < ω + 1, < ω + 2 < ... < ω + ω = ω2 < ω2 + 1 < ... Each of which is countably infinite.