Path: ...!weretis.net!feeder9.news.weretis.net!news.quux.org!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Keith Thompson Newsgroups: comp.theory Subject: Re: Cantor Diagonal Proof Date: Sun, 13 Apr 2025 15:00:34 -0700 Organization: None to speak of Lines: 16 Message-ID: <87h62rg1rx.fsf@nosuchdomain.example.com> References: <875xjfd5rs.fsf@nosuchdomain.example.com> <87tt6zblzl.fsf@nosuchdomain.example.com> <0920ac6e196c1cebeff36d8b9431ee12a7b3d527@i2pn2.org> <74db303c1d07ba0fdf70f1b20f5f7d6e04667665@i2pn2.org> <4f2f706fdbd8bb237b4bfbc750f65482db6e96c7@i2pn2.org> <84c84545ad9509384f5378553217346b12512a97@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Date: Mon, 14 Apr 2025 00:00:39 +0200 (CEST) Injection-Info: dont-email.me; posting-host="81eb20b1af8ee11d07b9431bae23cc05"; logging-data="3953434"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18NDjwv/jyqYubCmO5sbudH" User-Agent: Gnus/5.13 (Gnus v5.13) Cancel-Lock: sha1:0JMnPgJObtBBm7dVL/voyoJRBIw= sha1:Eg7cblF6eGM+3hj1ssR3QO1/3Ao= Bytes: 2488 Lawrence D'Oliveiro writes: > On Fri, 11 Apr 2025 21:41:48 -0400, Richard Damon wrote: >> Yes, but since you need the algorithms to compute ALL the numbers in >> your code, you can't put them all in. > > But the Cantor construction relies on constructing precisely such a list. > If you can’t put together such a list, then you can’t perform the Cantor > construction. The Cantor construction *assumes* the existence of such a list, demonstrates that that assumption leads to a contradiction, and concludes that no such list can exist. -- Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com void Void(void) { Void(); } /* The recursive call of the void */