Path: news.eternal-september.org!eternal-september.org!feeder3.eternal-september.org!i2pn.org!i2pn2.org!.POSTED!not-for-mail From: joes Newsgroups: comp.theory Subject: Re: DDD simulated by HHH cannot possibly halt (Halting Problem) --- mindless robots Date: Tue, 22 Apr 2025 12:47:35 -0000 (UTC) Organization: i2pn2 (i2pn.org) Message-ID: References: <852f89c9196e0261b8156050fea4572fe886933f@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Tue, 22 Apr 2025 12:47:35 -0000 (UTC) Injection-Info: i2pn2.org; logging-data="1373013"; 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 Am Mon, 14 Apr 2025 16:43:28 -0500 schrieb olcott: > On 4/14/2025 6:52 AM, dbush wrote: >> On 4/14/2025 7:46 AM, olcott wrote: >>> >>> Such an HHH works fine when the input DD is not attempting to do the >>> opposite of whatever this HHH reports. This is not a problem though. >>> DD merely changes its own behavior through the pathological >>> self-reference that it implements. >> Category error. DD is an algorithm, i.e. a fixed immutable sequence of >> instructions, therefore "changing its behavior" is impossible.  It only >> does exactly what its instructions say. > One version of DD is defined to screw with HHH. There is only one DD. -- Am Sat, 20 Jul 2024 12:35:31 +0000 schrieb WM in sci.math: It is not guaranteed that n+1 exists for every n.