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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: dbush <dbush.mobile@gmail.com> Newsgroups: comp.theory Subject: Re: DD specifies non-terminating behavior to HHH --- RECURSIVE CHAIN --- Saving Democracy Date: Sat, 22 Feb 2025 15:59:04 -0500 Organization: A noiseless patient Spider Lines: 56 Message-ID: <vpddqm$3e5k$4@dont-email.me> References: <vo6420$3mpmf$1@dont-email.me> <vofnj2$1qh2r$2@dont-email.me> <vohrmi$29f46$1@dont-email.me> <vojs0e$2oikq$4@dont-email.me> <vokdha$2rcqi$1@dont-email.me> <vom1fr$34osr$1@dont-email.me> <ee9d41d5f1c2a8dd8ff44d3ddeee20d2c3bcccc1@i2pn2.org> <vomgd8$3anm4$2@dont-email.me> <f5d6cbae83eb89e411d76d1d9ca801ef2678cec2@i2pn2.org> <voojl9$3mdke$2@dont-email.me> <855e571c6668207809e1eb67138de6af48d164fa@i2pn2.org> <vorlqp$aet5$2@dont-email.me> <e174ca1c1cbc58c67ffae3b67b69f63f21a82f86@i2pn2.org> <vp69r4$2mdtr$1@dont-email.me> <8fa176d46bf5b8c36def9e32ced67a1a3f81bae1@i2pn2.org> <vpbhrk$3mfi7$1@dont-email.me> <2e999502c40f736a3f3579d23bdb2b42dc74e897@i2pn2.org> <vpcurc$irt$5@dont-email.me> <vpd0e5$uj5$1@dont-email.me> <vpd3fg$irt$10@dont-email.me> <vpd4ih$2pvp$1@dont-email.me> <vpd6hp$2q85$3@dont-email.me> <vpd7s7$3e5k$1@dont-email.me> <vpd8pl$3h9q$1@dont-email.me> <vpd97q$3e5k$2@dont-email.me> <vpdaj5$3u9g$1@dont-email.me> <vpdatp$3e5k$3@dont-email.me> <vpddgj$3u9g$2@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Sat, 22 Feb 2025 21:59:03 +0100 (CET) Injection-Info: dont-email.me; posting-host="71441c56d83220426f9b7c1ba6da31b6"; logging-data="112820"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/IYOBcuXrHzXdB7ndRnT6Q" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:nwYR78bFjZ/QLqj6YhxM16F6Q2c= Content-Language: en-US In-Reply-To: <vpddgj$3u9g$2@dont-email.me> Bytes: 3802 On 2/22/2025 3:53 PM, olcott wrote: > On 2/22/2025 2:09 PM, dbush wrote: >> On 2/22/2025 3:03 PM, olcott wrote: > > 01 int F(int i) > 02 { > 03 if (i > 10) > 04 return 0; > 05 else > 06 return F(i+1); > 07 } > 08 > 09 int no_numbers_greater_than_10() > 10 { > 11 return F(0); > 12 } > 13 > 14 int main() > 15 { > 16 F((int)no_numbers_greater_than_10); > 17 return 0; > 18 } > >> >> So if the address of no_numbers_greater_than_10 is greater than 10 >> then 0 is returned right away, otherwise as most 10 recursive calls >> will be made before the condition is matched and 0 is returned. >> >> This doesn't change the fact that no_numbers_greater_than_10 correctly >> simulated by F cannot possibly return so F(no_numbers_greater_than_10) >> is correct to report non-halting, which means that there is no natural >> number greater than 10. >> >> Agreed? > > I think that you will find more bugs when you try to > provide the line number by line number execution trace. > > #1 bug F never simulates anything. > It is a verified fact that no_numbers_greater_than_10 correctly simulated by F cannot possibly return so F(no_numbers_greater_than_10) is correct to report non-halting. This answer is correct even if F gets it by a wild guess, as you have previously stated. You stated that HHH is correct to report DD as non-halting because replacing the code of HHH by an unconditional simulator causes DD to not halt. Similarly, F is correct to report no_numbers_greater_than_10 as non-halting because replacing the code of F by an unconditional simulator causes no_numbers_greater_than_10 to not halt. Agreed?