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Path: ...!eternal-september.org!feeder2.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Mikko <mikko.levanto@iki.fi> Newsgroups: sci.logic Subject: Re: Incompleteness of Cantor's enumeration of the rational numbers (extra-ordinary) Date: Fri, 22 Nov 2024 10:42:09 +0200 Organization: - Lines: 32 Message-ID: <vhpg51$13soc$1@dont-email.me> References: <vg7cp8$9jka$1@dont-email.me> <vgiet5$2l5ni$1@dont-email.me> <vgl2hj$3794c$1@dont-email.me> <vgleau$bi0i$2@solani.org> <vgnq3i$3qgfe$1@dont-email.me> <vgoka6$3vg2p$1@dont-email.me> <vgq1cm$b5vj$1@dont-email.me> <vgq3ca$beif$1@dont-email.me> <vgsp1c$v1ss$1@dont-email.me> <vgsq2v$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> <5b8de1bc-9f6c-4dde-a7cd-9e22e8ce19d9@att.net> <vhata3$59e5$2@dont-email.me> <31419fde-62b3-46f3-89f6-a48f1fe82bc0@att.net> <vhc77g$hdd4$1@dont-email.me> <476ae6cb-1116-44b1-843e-4be90d594372@att.net> <vhhr6f$1q0r9$1@dont-email.me> <ffa63cb5-8898-4aa7-80eb-8b2c51c9986d@att.net> <vhkhun$28qt$1@dont-email.me> <vhmtph$j1ek$1@dont-email.me> <vhn1jk$jf6v$1@dont-email.me> <vhn3po$jvo1$1@dont-email.me> <vhn420$jf6v$3@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Fri, 22 Nov 2024 09:42:09 +0100 (CET) Injection-Info: dont-email.me; posting-host="44cf26f94293c72b06b59cde3352c9ca"; logging-data="1176332"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+WDn5SsTmm6kGonaBVujwG" User-Agent: Unison/2.2 Cancel-Lock: sha1:0TGeZryfcMZMrZpqVqoZddQPbz8= Bytes: 2992 On 2024-11-21 11:03:28 +0000, WM said: > On 21.11.2024 11:59, Mikko wrote: >> On 2024-11-21 10:21:40 +0000, WM said: >> >>> On 21.11.2024 10:16, Mikko wrote: >>>> On 2024-11-20 11:42:15 +0000, WM said: >>> >>>>> The intervals before and after shifting are not different. Only their >>>>> positions are. >>>> >>>> The intervals are different. A shifted interval contains a different >>>> set of numbers. >>> >>> Consider this simplified argument. Let every unit interval after a >>> natural number n which is divisible by 10 be coloured black: (10n, >>> 10n+1]. All others are white. Is it possible to shift the black >>> intervals so that the whole real axis becomes black? >> >> Yes. Shift the interval (10n, 10n+1) to (n/2, n/2+1). > > For every finite (0, n] the relative covering remains f(n) = 1/10, > independent of shifting. The constant sequence has limit 1/10. That is irrelevant to your question whether the whole interval becomes black if the shifted intervals (n/2, n/2+1) are painted black. And that question is irrelevant to the topic specified on the subject line. -- Mikko