Re: Turing Machine computable functions apply finite string transformations to inputs

Liste des GroupesRevenir à theory 
Sujet : Re: Turing Machine computable functions apply finite string transformations to inputs
De : rjh (at) *nospam* cpax.org.uk (Richard Heathfield)
Groupes : comp.theory
Date : 28. Apr 2025, 08:33:26
Autres entêtes
Organisation : Fix this later
Message-ID : <vunb06$2fjjl$5@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
User-Agent : Mozilla Thunderbird
On 28/04/2025 07:46, Fred. Zwarts wrote:
<snip>

So we agree that no algorithm exists that can determine for all possible inputs whether the input specifies a program that (according to the semantics of the machine language) halts when directly executed.
Correct?
Correct. We can, however, construct such an algorithm just as long as we can ignore any input we don't like the look of.
Similarly, we can construct a list that contains all possible real numbers just as long as we can ignore any iffy numbers that smell a funny colour.
--
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

Date Sujet#  Auteur
21 Apr 25 * Re: Refutation of Turing’s 1936 Halting Problem Proof Based on Self-Referential Conflation as a Category (Type) Error450Keith Thompson
22 Apr 25 +* Re: Refutation of Turing’s 1936 Halting Problem Proof Based on Self-Referential Conflation as a Category (Type) Error442olcott
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25 Apr 25 i`* Re: Refutation of Turing’s 1936 Halting Problem Proof Based on Self-Referential Conflation as a Category (Type) Error440olcott
25 Apr 25 i +* Re: Refutation of Turing’s 1936 Halting Problem Proof Based on Self-Referential Conflation as a Category (Type) Error195Richard Damon
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25 Apr 25 i i +* Re: Refutation of Turing’s 1936 Halting Problem Proof Based on Self-Referential Conflation as a Category (Type) Error192joes
26 Apr 25 i i i`* Turing Machine computable functions apply finite string transformations to inputs191olcott
26 Apr 25 i i i +- Re: Turing Machine computable functions apply finite string transformations to inputs1dbush
26 Apr 25 i i i +* Re: Turing Machine computable functions apply finite string transformations to inputs188joes
26 Apr 25 i i i i`* Re: Turing Machine computable functions apply finite string transformations to inputs187olcott
26 Apr 25 i i i i +* Re: Turing Machine computable functions apply finite string transformations to inputs185Fred. Zwarts
26 Apr 25 i i i i i`* Re: Turing Machine computable functions apply finite string transformations to inputs184olcott
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26 Apr 25 i i i i i +* Re: Turing Machine computable functions apply finite string transformations to inputs181Richard Damon
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27 Apr 25 i i i i i i i   +* Re: Turing Machine computable functions apply finite string transformations to inputs137dbush
27 Apr 25 i i i i i i i   i`* Re: Turing Machine computable functions apply finite string transformations to inputs136olcott
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28 Apr 25 i i i i i i i   i iii +- Re: Turing Machine computable functions apply finite string transformations to inputs1joes
28 Apr 25 i i i i i i i   i iii +- Re: Turing Machine computable functions apply finite string transformations to inputs1Richard Damon
28 Apr 25 i i i i i i i   i iii `- Re: Turing Machine computable functions apply finite string transformations to inputs1dbush
28 Apr 25 i i i i i i i   i ii+- Re: Turing Machine computable functions apply finite string transformations to inputs1Richard Damon
28 Apr 25 i i i i i i i   i ii`* Re: Turing Machine computable functions apply finite string transformations to inputs125Fred. Zwarts
28 Apr 25 i i i i i i i   i ii `* Re: Turing Machine computable functions apply finite string transformations to inputs124Richard Heathfield
28 Apr 25 i i i i i i i   i ii  `* Re: Turing Machine computable functions apply finite string transformations to inputs123olcott
28 Apr 25 i i i i i i i   i ii   +* Re: Turing Machine computable functions apply finite string transformations to inputs15dbush
28 Apr 25 i i i i i i i   i ii   i`* Re: Turing Machine computable functions apply finite string transformations to inputs14olcott
28 Apr 25 i i i i i i i   i ii   i +* Re: Turing Machine computable functions apply finite string transformations to inputs11dbush
28 Apr 25 i i i i i i i   i ii   i i`* Re: Turing Machine computable functions apply finite string transformations to inputs10olcott
28 Apr 25 i i i i i i i   i ii   i i +* Re: Turing Machine computable functions apply finite string transformations to inputs7dbush
28 Apr 25 i i i i i i i   i ii   i i i`* Re: Turing Machine computable functions apply finite string transformations to inputs6olcott
28 Apr 25 i i i i i i i   i ii   i i i +* Re: Turing Machine computable functions apply finite string transformations to inputs4dbush
28 Apr 25 i i i i i i i   i ii   i i i i`* Re: Turing Machine computable functions apply finite string transformations to inputs3olcott
28 Apr 25 i i i i i i i   i ii   i i i i +- Re: Turing Machine computable functions apply finite string transformations to inputs1dbush
29 Apr 25 i i i i i i i   i ii   i i i i `- Re: Turing Machine computable functions apply finite string transformations to inputs1Richard Damon
29 Apr 25 i i i i i i i   i ii   i i i `- Re: Turing Machine computable functions apply finite string transformations to inputs1Richard Damon
28 Apr 25 i i i i i i i   i ii   i i +- Re: Turing Machine computable functions apply finite string transformations to inputs1Fred. Zwarts
29 Apr 25 i i i i i i i   i ii   i i `- Re: Turing Machine computable functions apply finite string transformations to inputs1Richard Damon
29 Apr 25 i i i i i i i   i ii   i `* Re: Turing Machine computable functions apply finite string transformations to inputs2Richard Damon
29 Apr 25 i i i i i i i   i ii   i  `- Re: Turing Machine computable functions apply finite string transformations to inputs1Richard Heathfield
28 Apr 25 i i i i i i i   i ii   +- Re: Turing Machine computable functions apply finite string transformations to inputs1joes
28 Apr 25 i i i i i i i   i ii   +* Re: Turing Machine computable functions apply finite string transformations to inputs104Richard Heathfield
28 Apr 25 i i i i i i i   i ii   i`* Re: Turing Machine computable functions apply finite string transformations to inputs103olcott
28 Apr 25 i i i i i i i   i ii   i +* Re: Turing Machine computable functions apply finite string transformations to inputs14dbush
28 Apr 25 i i i i i i i   i ii   i i`* Re: Turing Machine computable functions apply finite string transformations to inputs +++13olcott
28 Apr 25 i i i i i i i   i ii   i i `* Re: Turing Machine computable functions apply finite string transformations to inputs +++12dbush
28 Apr 25 i i i i i i i   i ii   i i  `* Re: Turing Machine computable functions apply finite string transformations to inputs +++11olcott
28 Apr 25 i i i i i i i   i ii   i i   `* Re: Turing Machine computable functions apply finite string transformations to inputs +++10dbush
28 Apr 25 i i i i i i i   i ii   i i    `* Re: Turing Machine computable functions apply finite string transformations to inputs +++9olcott
28 Apr 25 i i i i i i i   i ii   i i     +* Re: Turing Machine computable functions apply finite string transformations to inputs +++2dbush
28 Apr 25 i i i i i i i   i ii   i i     i`- Re: Turing Machine computable functions apply finite string transformations to inputs +++1Richard Heathfield
28 Apr 25 i i i i i i i   i ii   i i     +- Re: Turing Machine computable functions apply finite string transformations to inputs +++1Fred. Zwarts
28 Apr 25 i i i i i i i   i ii   i i     `* Re: Turing Machine computable functions apply finite string transformations to inputs +++5Richard Heathfield
28 Apr 25 i i i i i i i   i ii   i i      `* Re: Turing Machine computable functions apply finite string transformations to inputs +++4olcott
28 Apr 25 i i i i i i i   i ii   i i       +- Re: Turing Machine computable functions apply finite string transformations to inputs +++1dbush
28 Apr 25 i i i i i i i   i ii   i i       +- Re: Turing Machine computable functions apply finite string transformations to inputs +++1Richard Heathfield
29 Apr 25 i i i i i i i   i ii   i i       `- Re: Turing Machine computable functions apply finite string transformations to inputs +++1joes
28 Apr 25 i i i i i i i   i ii   i +* Re: Turing Machine computable functions DON'T apply finite string transformations to inputs2Alan Mackenzie
28 Apr 25 i i i i i i i   i ii   i i`- Re: Turing Machine computable functions DON'T apply finite string transformations to inputs1olcott
28 Apr 25 i i i i i i i   i ii   i `* Re: Turing Machine computable functions apply finite string transformations to inputs86Richard Heathfield
29 Apr 25 i i i i i i i   i ii   i  `* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT85olcott
29 Apr 25 i i i i i i i   i ii   i   +* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT7dbush
29 Apr 25 i i i i i i i   i ii   i   i`* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT6olcott
29 Apr 25 i i i i i i i   i ii   i   i +- Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT1Fred. Zwarts
29 Apr 25 i i i i i i i   i ii   i   i +- Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT1Richard Heathfield
29 Apr 25 i i i i i i i   i ii   i   i +- Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT1Richard Damon
29 Apr 25 i i i i i i i   i ii   i   i `* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT2dbush
29 Apr 25 i i i i i i i   i ii   i   i  `- Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT1dbush
29 Apr 25 i i i i i i i   i ii   i   +* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT65Richard Heathfield
29 Apr 25 i i i i i i i   i ii   i   i`* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT64olcott
29 Apr 25 i i i i i i i   i ii   i   i +* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT48Richard Heathfield
29 Apr 25 i i i i i i i   i ii   i   i i`* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT47olcott
29 Apr 25 i i i i i i i   i ii   i   i i +* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT45Richard Heathfield
29 Apr 25 i i i i i i i   i ii   i   i i i`* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT44olcott
29 Apr 25 i i i i i i i   i ii   i   i i i +* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT42Richard Heathfield
29 Apr 25 i i i i i i i   i ii   i   i i i i`* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT41olcott
29 Apr 25 i i i i i i i   i ii   i   i i i i +* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT39Richard Heathfield
30 Apr 25 i i i i i i i   i ii   i   i i i i i`* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT38olcott
30 Apr 25 i i i i i i i   i ii   i   i i i i i +* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT35Richard Heathfield
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1 May 25 i i i i i i i   i ii   i   i i i i i iii  i `* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT3olcott
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30 Apr 25 i i i i i i i   i ii   i   i i i i i +- Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT1dbush
1 May 25 i i i i i i i   i ii   i   i i i i i `- Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT1Richard Damon
30 Apr 25 i i i i i i i   i ii   i   i i i i `- Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT1Fred. Zwarts
30 Apr 25 i i i i i i i   i ii   i   i i i `- Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT1Fred. Zwarts
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29 Apr 25 i i i i i i i   i ii   i   i +* Re: Turing Machine computable functions apply finite string transformations to inputs VERIFIED FACT14Fred. Zwarts
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