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: Wed, 8 Jan 2025 22:50:58 +0100 Organization: A noiseless patient Spider Lines: 27 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> <8ef20494f573dc131234363177017bf9d6b647ee@i2pn2.org> <66868399-5c4b-4816-9a0c-369aaa824553@att.net> <412770ca-7386-403f-b7c2-61f671d8a667@att.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Wed, 08 Jan 2025 22:50:58 +0100 (CET) Injection-Info: dont-email.me; posting-host="34561df421edfb0b19ad775a8384d85f"; logging-data="3133280"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19gFqIsN01R9n7YN4z2tadRPRm6t4+qiEQ=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:afHKN5nOfQM0BP2UnB13K154wXo= Content-Language: en-US In-Reply-To: Bytes: 2699 On 08.01.2025 18:32, FromTheRafters wrote: > WM explained : >> On 08.01.2025 12:04, FromTheRafters wrote: >>> WM formulated on Wednesday : >> >>>> If ω exists, then ω-1 exists. >>> >>> Wrong. >> >> A set like ℕ has a fixed number of elements. If ω-1 does not exist, >> what is the fixed border of existence? > > Who says that there has to be a  fixed border of existence? According to set theory every set has a fixed set of elements, not more and not less. > Omega is a > limit ordinal not a successor. But the natural numbers are invariable. For every n, there is n+1 which is not created but simply exists. Regards, WM