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Path: ...!eternal-september.org!feeder2.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> Newsgroups: sci.math Subject: Re: Incompleteness of Cantor's enumeration of the rational numbers Date: Sun, 24 Nov 2024 15:29:03 -0800 Organization: A noiseless patient Spider Lines: 85 Message-ID: <vi0cru$2ebi8$2@dont-email.me> References: <vg7cp8$9jka$1@dont-email.me> <vhkir2$28qt$2@dont-email.me> <3399a95e386bc5864f1cfcfc9f91f48366e0fed2@i2pn2.org> <vhlamn$7jan$3@dont-email.me> <0d551828411c0588000796fa107a16b1e23a866c@i2pn2.org> <vhprpj$15kfd$2@dont-email.me> <74bdc0f14fd0f2c6bfd9ac511a37f66b41948ac4@i2pn2.org> <vhq5ov$1793m$2@dont-email.me> <b82423aaf8df2203171c1eb1afcb913925875795@i2pn2.org> <vhqrsu$1bb1f$2@dont-email.me> <vhqu9n$1bqev$1@dont-email.me> <vhs9v9$1krl6$3@dont-email.me> <vhshas$1n123$1@dont-email.me> <vhsi31$1n2ck$1@dont-email.me> <vhsi7e$1n4sl$1@dont-email.me> <vhsit2$1n52r$1@dont-email.me> <vht7o6$1qo7j$1@dont-email.me> <vhtb3o$1r2tr$1@dont-email.me> <0d6d06a888e15ed2042aca8ec7e6ebb93590b7bc@i2pn2.org> <vhtgec$1rdku$3@dont-email.me> <8a2aedd8383a84ceef2fd985ac0bf529e2a0eccf@i2pn2.org> <vhuv94$25ro0$1@dont-email.me> <be7b74a5d83b8ceebd1ec380bb57ff4190ec0cae@i2pn2.org> <vhv61v$25uqa$5@dont-email.me> <b75deca6b1a0631255cf1402ee83db2b266edd22@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Mon, 25 Nov 2024 00:29:03 +0100 (CET) Injection-Info: dont-email.me; posting-host="752c11c3033f6dd442669f85f21b84b4"; logging-data="2567752"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18oSDVIWu+hc1M9iTyL1KvzXZNnnBv/H1Y=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:VchPNaof2oL7xEBjgeyth1cFPsE= Content-Language: en-US In-Reply-To: <b75deca6b1a0631255cf1402ee83db2b266edd22@i2pn2.org> Bytes: 4810 On 11/24/2024 9:22 AM, Richard Damon wrote: > On 11/24/24 7:26 AM, WM wrote: >> On 24.11.2024 13:12, Richard Damon wrote: >>> On 11/24/24 5:31 AM, WM wrote: >>>> On 24.11.2024 03:22, Richard Damon wrote: >>>>> On 11/23/24 4:11 PM, WM wrote: >>>> >>>>>>>> Cover the unit intervals of prime numbers by red hats. Then >>>>>>>> shift the red hats so that all unit intervals of the positive >>>>>>>> real axis get red hats. >>>>>>>> >>>>>>> And you can, as >>>>>>> the red hat on the number 2, can be moved to the number 1 >>>>>>> the red hat on the number 3, can be moved to the number 2 >>>>>>> the red hat on the number 5, can be moved to the number 3 >>>>>> >>>>>> A very naive recipe. >>>>> >>>>> But it works. >>>> >>>> It fails in every step to cover the interval (0, n] with hats taken >>>> from this interval. >>> >>> But that isn't the requirement. >>> >>> The requirement it to map from ALL Prime Natural Numbers to ALL >>> Natural Numbers >>> >>>> >>>>>> Yes, for every n that belongs to a tiny initial segment. >>>>> >>>>> No, for EVERY n. >>>>> >>>>> Show one that it doesn't work for! >>>> >>>> The complete covering fails in every interval (0, n] with hats taken >>>> from this interval. >>> >>> Which isn't the interval in question. >>> >>> Your funny-mental fallacy is that you think an infinite set can be >>> thought of as just some finite set allowed to keep growning until it >>> reaches infinity, >>> >>> That is just the wrong model. >>> >>>>>> >>>>>>> so all the numbers get covered. >>>>>> >>>>>> No. >>>>> >>>>> WHich one doesn't. >>>> >>>> Almost all. The reason is simple mathematics. For every interval (0, >>>> n] the relative covering is 1/10, independent of how the hats are >>>> shifted. This cannot be remedied in the infinite limit because >>>> outside of all finite intervals (0, n] there are no further hats >>>> available. >>> >>> But finite sets aren't infinite sets, and don't act the same as them. >>> >> All finite sets are the infinite set. >>>> >>> You can not just use finite mathematics on infinite sets. >> >> But I can use the analytical limit of the constant sequence. >> >> Regards, WM >> > > Nope, since the finite sets are not the same as the infinite set, the > property you are looking at just doesn't exist in the infinite set. > > Limit theory only works if the limit actually exists > > You can get things that APPEAR to reach a limit, but actually don't. Let me guess... WM thinks there is a limit wrt the natural numbers? lol! > > You are just confirming that yoiu mind HAS benn exploded by the > contradictions of using finite logic on infinite sets, and that has left > the great big "dark hole" in your logic, that doesn't actually exist.