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Path: ...!weretis.net!feeder9.news.weretis.net!i2pn.org!i2pn2.org!.POSTED!not-for-mail From: joes <noreply@example.com> Newsgroups: comp.theory Subject: Re: Why does Olcott care about simulation, anyway? --- Ben's Review Date: Tue, 4 Jun 2024 08:21:30 -0000 (UTC) Organization: i2pn2 (i2pn.org) Message-ID: <v3miqa$303qa$2@i2pn2.org> References: <v3j20v$3gm10$2@dont-email.me> <J_CdnTaA96jxpcD7nZ2dnZfqnPudnZ2d@brightview.co.uk> <87h6eamkgf.fsf@bsb.me.uk> <v3kcdj$3stk9$1@dont-email.me> <v3kjs9$3u7ng$1@dont-email.me> <v3l16f$5d3$4@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Tue, 4 Jun 2024 08:21:30 -0000 (UTC) Injection-Info: i2pn2.org; logging-data="3149642"; mail-complaints-to="usenet@i2pn2.org"; posting-account="nS1KMHaUuWOnF/ukOJzx6Ssd8y16q9UPs1GZ+I3D0CM"; User-Agent: Pan/0.145 (Duplicitous mercenary valetism; d7e168a git.gnome.org/pan2) X-Spam-Checker-Version: SpamAssassin 4.0.0 Bytes: 2177 Lines: 27 Am Mon, 03 Jun 2024 13:14:39 -0500 schrieb olcott: > On 6/3/2024 9:27 AM, Mikko wrote: >> On 2024-06-03 12:20:01 +0000, olcott said: >>> On 6/3/2024 4:42 AM, Ben Bacarisse wrote: >>>> Mike Terry <news.dead.person.stones@darjeeling.plus.com> writes: >>>> >>>> He has quite explicitly stated that false (0) is the correct result >>>> for H(D,D) "even though D(D) halts". I am mystified why anyone >>>> continues to discuss the matter until he equally explicitly >>>> repudiates that claim. >>>> >>> Deciders only compute the mapping *from their inputs* to their own >>> accept or reject state. >> >> That does not restrict what a problem statement can specify. >> If the computed mapping differs from the specified one the decider does >> not solve the problem. >> > int sum(int x, int y) { return x + y; } sum(2,3) cannot return the sum > of 5 + 6. > > DD correctly simulated by HH does have provably different behavior than > DD(DD) so HH is is not allowed to report on the behavior of DD(DD). Huh? Then HH is not a correct simulator if it produces different behaviour. Why is it not allowed? -- joes