Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: FromTheRafters Newsgroups: sci.math Subject: Re: Incompleteness of Cantor's enumeration of the rational numbers (extra-ordinary) Date: Wed, 04 Dec 2024 13:06:23 -0500 Organization: Peripheral Visions Lines: 32 Message-ID: References: <23311c1a-1487-4ee4-a822-cd965bd024a0@att.net> <71758f338eb239b7419418f49dfd8177c59d778b@i2pn2.org> <9bcc128b-dea8-4397-9963-45c93d1c14c7@att.net> <50c82b03-8aa1-492c-9af3-4cf2673d6516@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: Wed, 04 Dec 2024 19:06:28 +0100 (CET) Injection-Info: dont-email.me; posting-host="36d1760a1ed0cb3157bb9bb0b6985926"; logging-data="1089049"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19eqKoa8w+lSwtWWIWwTGrqchS+dTLjG84=" Cancel-Lock: sha1:juXprvZxIotyx8TwTfLKg5GAghY= X-ICQ: 1701145376 X-Newsreader: MesNews/1.08.06.00-gb Bytes: 2962 WM laid this down on his screen : > On 04.12.2024 11:33, FromTheRafters wrote: >> WM formulated the question : >>> On 03.12.2024 21:34, Jim Burns wrote: >>>> On 12/3/2024 8:02 AM, WM wrote: >>> >>>>> E(1)∩E(2)∩...∩E(n) = E(n). >>>>> Sequences which are identical in every term >>>>> have identical limits. >>>> >>>> An empty intersection does not require >>>>   an empty end.segment. >>> >>> A set of non-empty endsegments has a non-empty intersection. The reason is >>> inclusion-monotony. >> >> Conclusion not supported by facts. > > In two sets A and B which are non-empty both but have an empty intersection, > there must be at least two elements a and b which are in one endsegment but > not in the other: > a ∈ A but a ∉ B and b ∉ A but b ∈ B. Finite thinking. > Same with a set of endsegments. No, because they are infinite and have no last element to be in every participating endsegment. > It can be divided into two sets for both of > which the same is required.