Path: ...!weretis.net!feeder9.news.weretis.net!i2pn.org!i2pn2.org!.POSTED!not-for-mail From: joes Newsgroups: sci.math Subject: Re: How many different unit fractions are lessorequal than all unit fractions? Date: Thu, 10 Oct 2024 11:26:25 -0000 (UTC) Organization: i2pn2 (i2pn.org) Message-ID: <2f7bab53f119e5cded9c822182d920dd6a53b95e@i2pn2.org> References: <8c94a117d7ddaba3e7858116dc5bc7c66a46c405@i2pn2.org> <8ce3fac3a0c92d85c72fec966d424548baebe5af@i2pn2.org> <55cbb075e2f793e3c52f55af73c82c61d2ce8d44@i2pn2.org> <9402bbc384ade20d6fafc9ff0534e7c6f5ae4581@i2pn2.org> <16a3a288677fff0a9815d3a227de72860c9098f9@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Thu, 10 Oct 2024 11:26:25 -0000 (UTC) Injection-Info: i2pn2.org; logging-data="1378520"; mail-complaints-to="usenet@i2pn2.org"; posting-account="nS1KMHaUuWOnF/ukOJzx6Ssd8y16q9UPs1GZ+I3D0CM"; User-Agent: Pan/0.145 (Duplicitous mercenary valetism; d7e168a git.gnome.org/pan2) X-Spam-Checker-Version: SpamAssassin 4.0.0 Bytes: 3794 Lines: 43 Am Wed, 09 Oct 2024 15:35:10 +0200 schrieb WM: > On 09.10.2024 14:26, joes wrote: >> Am Wed, 09 Oct 2024 11:47:57 +0200 schrieb WM: >>> On 08.10.2024 21:23, joes wrote: >>>> Am Tue, 08 Oct 2024 17:30:19 +0200 schrieb WM: >>>>> On 08.10.2024 15:26, joes wrote: >>>>>> Am Tue, 08 Oct 2024 12:46:01 +0200 schrieb WM: >>>>> >>>>>>> Because infinitely many natural numbers are contained. This is >>>>>>> true for all infinite sets of the function. Therefore they cannot >>>>>>> have lost all numbers. All endsegments are infinite. >>>>>> What does „they” refer to in the last sentence? >>>>> All endsegments which have infinitely many natural numbers. There are no others. >>>> We are, again, not talking about an element of the sequence, which >>>> has a natural index, contains infinitely many successors and is >>>> missing a finite number of predecessors. >>> I am talking about such endsegments. Their intersection is infinite. Which intersection? >> Such an intersection is itself part of the sequence. > Of course. What about the intersection of all infinitely many segments? >>>> What we are talking about is the, pardon, limit of whatever function. >>> The limit-endsegment is empty. >> Why? > Because every n has become an index and then is lost. It is impossible to use up an infinity. >>> The intersection is infinite because all infinite endsegments contain >>> the same infinite set. Some have lost more or less numbers but the >>> core remains infinite in all infinite endsegments. No. You seem to imagine them as finite but sharing a mysterious omega. Instead, replace that with "..." and you got it. >> And how many segments have been intersected? > (Potentially in-)finitely many because the collection of indices is > finite as long as an infinite set of numbers remains within the > endsegments. And what if we intersect infinitely many? -- Am Sat, 20 Jul 2024 12:35:31 +0000 schrieb WM in sci.math: It is not guaranteed that n+1 exists for every n.