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Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: WM <wolfgang.mueckenheim@tha.de> Newsgroups: sci.logic Subject: Re: Incompleteness of Cantor's enumeration of the rational numbers (extra-ordinary) Date: Mon, 16 Dec 2024 12:14:50 +0100 Organization: A noiseless patient Spider Lines: 26 Message-ID: <vjp23b$13ar5$3@dont-email.me> References: <vg7cp8$9jka$1@dont-email.me> <vgsq2v$v5t1$1@dont-email.me> <vgvm6h$1k8co$1@dont-email.me> <vgvmvr$1kc5f$1@dont-email.me> <vh1vlb$25kic$1@dont-email.me> <vh2j89$29gco$1@dont-email.me> <vh4f7p$2o5hn$1@dont-email.me> <vh4job$2ov2c$1@dont-email.me> <vh78jp$3cbq7$1@dont-email.me> <vh7d5c$3cpaf$1@dont-email.me> <vh9o5u$3un1v$1@dont-email.me> <vhasiv$59e5$1@dont-email.me> <vhcb2r$i5se$1@dont-email.me> <vhcgic$hge9$1@dont-email.me> <vhcngu$kmv2$1@dont-email.me> <35274130-ffa0-4d11-b634-f2feb3851416@tha.de> <vhf33f$16f4o$1@dont-email.me> <f7fab959-0408-49c1-8e1c-d93e389e3021@tha.de> <vhhlvf$1p6v4$1@dont-email.me> <vhhrb7$1q0r9$2@dont-email.me> <vjjgbq$3u217$1@dont-email.me> <vjjh1u$3tvsg$3@dont-email.me> <e20e2d1502c1fdc0c370c7bd61f767f1ec932446@i2pn2.org> <vjk9pt$1tms$2@dont-email.me> <f6e3bceb3370161d5dc527ad8783eb504a6e30a4@i2pn2.org> <vjktk8$5rcl$1@dont-email.me> <064058bf8d7385726ccf40519cc8b496497092cb@i2pn2.org> <vjmd1v$hn65$1@dont-email.me> <vjou7n$131j8$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Mon, 16 Dec 2024 12:14:52 +0100 (CET) Injection-Info: dont-email.me; posting-host="8cb16b437f3efafb0eb1892e9ae812c7"; logging-data="1157989"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+YE3vRO3R2b1gYaMBRyTzGN41+lTkUKxY=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:eoULVp7yvWZoSzd21jVoAiMstCE= In-Reply-To: <vjou7n$131j8$1@dont-email.me> Content-Language: en-US Bytes: 2833 On 16.12.2024 11:08, Mikko wrote: > On 2024-12-15 11:03:27 +0000, WM said: > >>>>>> Of course. It consist of all finite n. It is the union of all >>>>>> intervals (0, n]. Not more! >>>> >>>>> But the set of Natural Numbers isn't built that way. >>>> >>>> You are misinformed. The set of natural numbers is the union of all >>>> FISONs F(n) = {1, 2, 3, ..., n} = (0, n]. >>>> >>> From where did this concept come from? >> >> The set of FISONs is the set of natural numbers designed by v. Neumann. > > The construction of natural numbers as sets was presented by Cantor > (apparently as a comment to Kronecker's "God made the integers, all > else is the work of man"). Yes, see https://www.hs-augsburg.de/~mueckenh/Transfinity/Transfinity/pdf, p. 43. But details differ. Regards, WM