Path: ...!weretis.net!feeder9.news.weretis.net!2.eu.feeder.erje.net!feeder.erje.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: "Chris M. Thomasson" Newsgroups: sci.math Subject: Re: How many different unit fractions are lessorequal than all unit fractions? Date: Sun, 22 Sep 2024 16:28:27 -0700 Organization: A noiseless patient Spider Lines: 28 Message-ID: References: <13c08e96ad635f8142b38d89863a80caf17a32a8@i2pn2.org> <4faa63d0ff8c163f01a38736aeb5732184218a29@i2pn2.org> <87414b50e6265e6e443c4486913201749f2696ed@i2pn2.org> <5b130929c7f56ea83246b7f6534ba5fae4598c62@i2pn2.org> <2551da6710975930f68b61f8e76ea6990411168b@i2pn2.org> <2c1940845e336c71cf55b737945d3132b1a41e62@i2pn2.org> <59204af99930441bf5a2cb92d80a34e25a0d0835@i2pn2.org> <649d66170b7274e49882940c18cde7817e62c560@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Mon, 23 Sep 2024 01:28:28 +0200 (CEST) Injection-Info: dont-email.me; posting-host="57077e43f9083b2c8af43c64109cbf78"; logging-data="2522870"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/7GUN5WYrWDQ/GhvMG/m6lbjJdb9z6zDs=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:Ie5GBTq8V8SZDpyHt9KmpcqerJw= Content-Language: en-US In-Reply-To: Bytes: 2928 On 9/22/2024 12:04 PM, Chris M. Thomasson wrote: > On 9/22/2024 8:36 AM, WM wrote: >> On 22.09.2024 16:18, joes wrote: >>> Am Sun, 22 Sep 2024 15:27:01 +0200 schrieb WM: >> >>>>> So, we can just choose the finite initial segment that includes that >>>>> number, and thus can use it, >>>> But you cannot choose the infinite rest. >>> Of course you can. >>> >> No, I cannot. But if you can, please show it. Choose a number having >> more predecessors than successors. > > Lets say two wrt natural numbers wrt 0 included: > > 0->1->2->... > > It has two predecessors (0 and 1), negative aside for a moment. > > However, it has infinite successors: > > 0->1->2->3->4->5->6->... > > Fair enough? Wrt signed integers, each number has infinite predecessors and infinite successors.