Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: "Fred. Zwarts" Newsgroups: comp.theory Subject: Re: HHH(DD) --- COMPUTE ACTUAL MAPPING FROM INPUT TO OUTPUT --- Using Finite String Transformations Date: Tue, 22 Apr 2025 21:30:11 +0200 Organization: A noiseless patient Spider Lines: 28 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Tue, 22 Apr 2025 21:30:12 +0200 (CEST) Injection-Info: dont-email.me; posting-host="221625c8ee30a140870d84331232caab"; logging-data="1039659"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+zFFgkFf4uRliSgS7OpVL2" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:qHnPMNic2U1M+WX/uFsx4uiyY8w= In-Reply-To: Content-Language: nl, en-GB Bytes: 2901 Op 22.apr.2025 om 21:14 schreef olcott: > On 4/22/2025 1:10 PM, Fred. Zwarts wrote: >> Op 22.apr.2025 om 18:38 schreef olcott: >>> >>> a function is computable if there exists an algorithm >>> that can do the job of the function, i.e. given an input >>> of the function domain it can return the corresponding output. >>> https://en.wikipedia.org/wiki/Computable_function >>> >>> On Turing Machines inputs finite strings, and >>> finite string transformation rules applied to >>> these finite strings to derive corresponding outputs. >>> >> And it has been proven that no finite string transformations are >> possible that report the halting behaviour for all inputs that specify >> a correct program. > > int sum(int x, int y) { return x + y; } > Only when people stupid assume the same thing as > sum(3,2) should return the sum of 5 + 3. > Therefore HHH should report on the actual input, the finite string that describes a halting program. Not on the hypothetical input that does not halt, because it is based on a hypothetical HHH that does not abort. Why do you maintain that HHH should process the hypothetical input instead of the actual input. Do you really believe that 3+2 equals 5+3?