Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.theory > #135751
| From | olcott <polcott333@gmail.com> |
|---|---|
| Newsgroups | comp.theory |
| Subject | Re: Are the H(D) in main and the H(D) in D the same? |
| Date | 2025-11-15 17:58 -0600 |
| Organization | A noiseless patient Spider |
| Message-ID | <10fb43a$3r1hm$1@dont-email.me> (permalink) |
| References | (2 earlier) <10fav7u$3pshj$1@dont-email.me> <10fb1gq$3qeuq$1@dont-email.me> <10fb1ig$3qesr$1@dont-email.me> <10fb2fa$3qmae$1@dont-email.me> <20251115153246.274@kylheku.com> |
On 11/15/2025 5:39 PM, Kaz Kylheku wrote: > On 2025-11-15, olcott <polcott333@gmail.com> wrote: >> On 11/15/2025 5:15 PM, Tristan Wibberley wrote: >>> On 15/11/2025 23:14, olcott wrote: >>>> On 11/15/2025 4:35 PM, Tristan Wibberley wrote: >>>>> On 15/11/2025 20:36, Kaz Kylheku wrote: >>>>> >>>>>> The underlying mathematics doesn't support that; the expression H(D) >>>>>> denotes exactly the same computation and result wherever it appears. >>>>> >>>>> Is this in the problem where C semantics are specified? There the >>>>> underlying mathematics supports it because of the semantics of the C >>>>> programming language. >>>>> >>>> >>>> D simulated by H specifies that H simulates >>>> D and then must simulate an instance of itself >>>> simulating an instance of D. >>>> >>>> D simulated by H1 does not specify that H1 >>>> simulate itself at all. >>>> >>>> Any C programmer can instantly see this. >>> >>> Thanks it doesn't help. >>> >> >> C is essentially its own formal mathematical >> language with its own semantics thus what I >> just said applies to C as a formal language. > > The problem, you idiot, is that same-named entities between > mathematics and C like "variable" and "function" do not correspond. > Computable functions of C maps to x86 that maps to RASP machines that maps to Turing machines *From the bottom of page 319 has been adapted to this* https://www.liarparadox.org/Peter_Linz_HP_317-320.pdf Ĥ.q0 ⟨Ĥ⟩ ⊢* Ĥ.embedded_H ⟨Ĥ⟩ ⟨Ĥ⟩ ⊢* Ĥ.∞, // accept state Ĥ.q0 ⟨Ĥ⟩ ⊢* Ĥ.embedded_H ⟨Ĥ⟩ ⟨Ĥ⟩ ⊢* Ĥ.qn // reject state D simulated by H maps to ⟨Ĥ⟩ ⟨Ĥ⟩ simulated by Ĥ.embedded_H That you only have rhetoric and insults as your basis fools all of the gullible people in this group. > Yes, I know you like to assume that the same words refer to "isomorphic" > entities (another word you don't understand) but that simpy isn't so. > > Even if we can build a formal model of C, that model cannot > turn a C function into a math function. > > And, no, C is not formally specified. It is informally specified, in a > plain language description which leaves many details "unspecified", > "implementation-defined" and "undefined". Every revision of the ISO C > standard has been the target of defect reports. > > There are projects out there to do formal verification on C programs; > those have to construct their own formal model; you don't get one > from ISO C. > > If you want certain functions in a C file to model math > functions (like functions from the theory of computation) > you have to tread very carefully. > > You cannot pull bullshit like have to identical functions be > treated as different because one of them is called by > a certain function and the other isn't. > > If you have two idnetical functions, you have to ensure that > everything in your system behaves as if they were just two > different /names/ for a single function. > > Your functions cannot have any side effects, like reacting to > different values of a shared, static variable; they have to be pure. > -- Copyright 2025 Olcott "Talent hits a target no one else can hit; Genius hits a target no one else can see." Arthur Schopenhauer
Back to comp.theory | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Are the H(D) in main and the H(D) in D the same? wij <wyniijj5@gmail.com> - 2025-11-16 03:57 +0800
Re: Are the H(D) in main and the H(D) in D the same? Kaz Kylheku <643-408-1753@kylheku.com> - 2025-11-15 20:36 +0000
Re: Are the H(D) in main and the H(D) in D the same? wij <wyniijj5@gmail.com> - 2025-11-16 05:11 +0800
Re: Are the H(D) in main and the H(D) in D the same? olcott <polcott333@gmail.com> - 2025-11-15 15:40 -0600
Re: Are the H(D) in main and the H(D) in D the same? wij <wyniijj5@gmail.com> - 2025-11-16 06:10 +0800
Re: Are the H(D) in main and the H(D) in D the same? olcott <polcott333@gmail.com> - 2025-11-15 16:20 -0600
Re: Are the H(D) in main and the H(D) in D the same? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-11-15 14:35 -0800
Re: Are the H(D) in main and the H(D) in D the same? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-11-15 14:38 -0800
Re: Are the H(D) in main and the H(D) in D the same? Tristan Wibberley <tristan.wibberley+netnews2@alumni.manchester.ac.uk> - 2025-11-15 22:35 +0000
Re: Are the H(D) in main and the H(D) in D the same? olcott <polcott333@gmail.com> - 2025-11-15 17:14 -0600
Re: Are the H(D) in main and the H(D) in D the same? Tristan Wibberley <tristan.wibberley+netnews2@alumni.manchester.ac.uk> - 2025-11-15 23:15 +0000
Re: Are the H(D) in main and the H(D) in D the same? olcott <polcott333@gmail.com> - 2025-11-15 17:30 -0600
Re: Are the H(D) in main and the H(D) in D the same? Kaz Kylheku <643-408-1753@kylheku.com> - 2025-11-15 23:39 +0000
Re: Are the H(D) in main and the H(D) in D the same? olcott <polcott333@gmail.com> - 2025-11-15 17:58 -0600
Re: Are the H(D) in main and the H(D) in D the same? Mikko <mikko.levanto@iki.fi> - 2025-11-16 11:05 +0200
csiph-web