Path: ...!weretis.net!feeder8.news.weretis.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? (infinitary) Date: Tue, 8 Oct 2024 12:41:21 -0700 Organization: A noiseless patient Spider Lines: 43 Message-ID: References: <8ce3fac3a0c92d85c72fec966d424548baebe5af@i2pn2.org> <55cbb075e2f793e3c52f55af73c82c61d2ce8d44@i2pn2.org> <05a3027798506434bf2f30b527e0f57d300e76c3@i2pn2.org> <6f188d193341a3862f4c788a44dff3dfb27fb6bd@i2pn2.org> <81f6f0271a53803c0bf79be304ce2484e33aecda@i2pn2.org> <9c40b18616ae46bd3220da775ee80456b643c982@i2pn2.org> <50b4ecf5c6f8f0c7bd580775c382896660500045@i2pn2.org> <9e676dcc6d45fceae8c10f0c7addce0a59381283@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Tue, 08 Oct 2024 21:41:23 +0200 (CEST) Injection-Info: dont-email.me; posting-host="d938895af8a55dcdf6009a32333c8ef4"; logging-data="2417443"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/oqkcy4NMkshM3lX/YTIzvul1jpIRbbCw=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:3MzDBLtUXgcQlB1CDnYNjOwCb+U= Content-Language: en-US In-Reply-To: <9e676dcc6d45fceae8c10f0c7addce0a59381283@i2pn2.org> Bytes: 3649 On 10/8/2024 11:01 AM, Richard Damon wrote: > On 10/8/24 11:34 AM, WM wrote: >> On 08.10.2024 15:36, Richard Damon wrote: >>> On 10/8/24 6:03 AM, WM wrote: >>>> On 08.10.2024 09:30, Moebius wrote: >>>>> Am 08.10.2024 um 09:29 schrieb Moebius: >>>> >>>>>> Properly understood, the idea of a completed infinity is no longer >>>>>> a problem in mathematics or philosophy. It is perfectly >>>>>> intelligible and coherent. >>>> >>>> Yes, but it is completed and therefore fixed. The number of nines in >>>> 0.999... does not change when shifted by one step. >>>> >>> But it must be infinite, and thus not have an "end" >> >> But it must be complete and therefore in linear order must have an end. >> >> Regards, WM >> > > And then it isn't infinte. > > Seems you don't understand the problem with "completed infinity" that > being infinite, it can't be actually fully understood by the finite. Think of a scenario where we are inside of a black hole that resides in our parent universe. This black hole has a parent, and has children, us as in our universe. This would mean that its a cosmic family tree, like a fractal. This also means that certain black holes in our own universe have children. However, a resolution to the chicken and egg problem in this thought process would be to say that this cosmic tree was simply _always_ there, was never created and will never die... Ahh the infinite... ;^) > > Having linear order does not imply having an end, unless you can assume > a finiteness.