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Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: olcott <polcott2@gmail.com> Newsgroups: comp.theory Subject: Re: Categorically exhaustive reasoning applied to the decision to abort Date: Wed, 27 Mar 2024 09:04:17 -0500 Organization: A noiseless patient Spider Lines: 70 Message-ID: <uu1911$2seum$2@dont-email.me> References: <utlf69$39fl1$1@dont-email.me> <utlff5$3997r$3@dont-email.me> <utlgg1$2o1am$20@i2pn2.org> <utlirq$3dsl2$2@dont-email.me> <utmo5e$2plc2$8@i2pn2.org> <utmqu6$3msk5$1@dont-email.me> <utnmqm$3tjdn$1@dont-email.me> <utnoks$3ttm3$2@dont-email.me> <utns99$2rkld$3@i2pn2.org> <uto24n$3vtt8$2@dont-email.me> <utpd7m$dibu$1@dont-email.me> <utsv72$1bgkl$6@dont-email.me> <utu29i$1n8qn$1@dont-email.me> <utumq5$1rsiu$5@dont-email.me> <uu0p2r$2opup$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Wed, 27 Mar 2024 14:04:18 +0100 (CET) Injection-Info: dont-email.me; posting-host="fa63db01727c3acc7401a5d56fb7345e"; logging-data="3029974"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+NBpEAv3iDyK5hZWZjvrgB" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:cIKx2stF4SAhlDtyxQkb7X/L+VI= In-Reply-To: <uu0p2r$2opup$1@dont-email.me> Content-Language: en-US Bytes: 4215 On 3/27/2024 4:32 AM, Mikko wrote: > On 2024-03-26 14:41:08 +0000, olcott said: > >> On 3/26/2024 3:50 AM, Mikko wrote: >>> On 2024-03-25 22:52:18 +0000, olcott said: >>> >>>> On 3/24/2024 9:27 AM, Mikko wrote: >>>>> On 2024-03-24 02:11:34 +0000, olcott said: >>>>> >>>>>> On 3/23/2024 7:31 PM, Richard Damon wrote: >>>>>>> On 3/23/24 7:29 PM, olcott wrote: >>>>>>>> On 3/23/2024 5:58 PM, immibis wrote: >>>>>>>>> On 23/03/24 16:02, olcott wrote: >>>>>>>>>> (b) H(D,D) that DOES abort its simulation is correct >>>>>>>>>> (ABOUT THIS ABORT DECISION) >>>>>>>>>> because it would halt and all deciders must always halt. >>>>>>>>> >>>>>>>>> To be a decider it has to give an answer. >>>>>>>>> >>>>>>>>> To be a halt decider it has to give an answer that is the same >>>>>>>>> as whether the direct execution of its input would halt. >>>>>>>>> >>>>>>>> >>>>>>>> That would entail that H must report on different behavior >>>>>>>> than the behavior that H actually sees thus violate the >>>>>>>> definition of a decider that must compute the mapping from >>>>>>>> its inputs... >>>>>>> >>>>>>> Nope. >>>>>>> You are just showing yourself to be a stupid liar. >>>>>>> >>>>>>> Where in the DEFINITION of Compute the Mapping of the Input to >>>>>>> the Mapped Output does it say that the decider has to be able to >>>>>>> "see" that property of the input? >>>>>>> >>>>>> >>>>>> In order to compute the mapping from an input there must be >>>>>> some basis that is directly provided by this input. >>>>> >>>>> If no such basis is in the input the problem has no soution. >>>>> >>>> >>>> int sum(int x, int y){ return x + y; } >>>> sum(3,4) is not allowed to report on the sum of 5 + 6 >>>> even if you really really believe that it should. >>> >>> Your and my beliefs don't matter. Testers call the function with >>> various pairs of inputs and compare the result to the specification. >>> If the result is not what the specification requires then the function >>> is wrong and needs be fixed or rejected. >>> >> >> There is enough information for sum(3,4) to compute the sum of 3+4. >> There is NOT enough information for sum(3,4) to compute the sum of 5+6. >> >> There is enough information for H1(D,D) to compute Halts(D,D). >> There is NOT enough information for H(D,D) to compute Halts(D,D). > > There is enough information to determine whether the result is as > required by the specification. > This specification only requires a mapping from H(D,D) to Halts(Simulated_by_H(D,D)) and it gets that one correctly. D(D) does not halt from the POV of H. -- Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius hits a target no one else can see." Arthur Schopenhauer