Path: ...!weretis.net!feeder9.news.weretis.net!i2pn.org!i2pn2.org!.POSTED!not-for-mail From: Richard Damon Newsgroups: sci.logic,sci.math Subject: Re: Replacement of Cardinality Date: Sat, 24 Aug 2024 13:06:47 -0400 Organization: i2pn2 (i2pn.org) Message-ID: <28134332f42b7c71a86c2702e75b2120a827fe28@i2pn2.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Sat, 24 Aug 2024 17:06:47 -0000 (UTC) Injection-Info: i2pn2.org; logging-data="3733217"; mail-complaints-to="usenet@i2pn2.org"; posting-account="diqKR1lalukngNWEqoq9/uFtbkm5U+w3w6FQ0yesrXg"; User-Agent: Mozilla Thunderbird In-Reply-To: Content-Language: en-US X-Spam-Checker-Version: SpamAssassin 4.0.0 Bytes: 1701 Lines: 13 On 8/24/24 10:17 AM, WM wrote: > Le 23/08/2024 à 20:13, Jim Burns a écrit : > >> All finiteⁿᵒᵗᐧᵂᴹ ordered sets _and their subsets_ >> are 2.ended, except for {}. > > Every set of unit fractions extended over an interval has two ends in > that interval. > > Regards, WM > But for the full, unbounded set, one of those ends isn't in the set, but is 0, as the set itself has no end in that direction.