Re: Every D correctly simulated by H never reaches its final state and halts

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Sujet : Re: Every D correctly simulated by H never reaches its final state and halts
De : F.Zwarts (at) *nospam* HetNet.nl (Fred. Zwarts)
Groupes : comp.theory sci.logic
Date : 17. May 2024, 09:25:52
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v270q1$22vhs$1@dont-email.me>
References : 1
User-Agent : Mozilla Thunderbird
Op 17.mei.2024 om 03:15 schreef olcott:
The following is self-evidently true on the basis of the
semantics of the C programming language.
 typedef int (*ptr)();  // ptr is pointer to int function
00 int H(ptr x, ptr x);
01 int D(ptr x)
02 {
03   int Halt_Status = H(x, x);
04   if (Halt_Status)
05     HERE: goto HERE;
06   return Halt_Status;
07 }
08
09 int main()
10 {
11   H(D,D);
12   return 0;
13 }
 In the above case a simulator is an x86 emulator that correctly
emulates at least one of the x86 instructions of D in the order
specified by the x86 instructions of D.
 This may include correctly emulating the x86 instructions of H
in the order specified by the x86 instructions of H thus calling
H(D,D) in recursive simulation.
 Any H/D pair matching the above template where
D(D) is simulated by the same H(D,D) that it calls
cannot possibly reach its own line 06 and halt.
 *This is a simple software engineering verified fact*
 
Note that olcott defines 'verified fact' as 'proven fact', but he is unable to show the proof. So, it must be read as 'my belief'.

Date Sujet#  Auteur
17 May 24 * Every D correctly simulated by H never reaches its final state and halts14olcott
17 May 24 +* Re: Every D correctly simulated by H never reaches its final state and halts3Richard Damon
17 May 24 i`* Re: Every D correctly simulated by H never reaches its final state and halts2olcott
17 May 24 i `- Re: Every D correctly simulated by H never reaches its final state and halts1Richard Damon
17 May 24 +* Re: Every D correctly simulated by H never reaches its final state and halts9Fred. Zwarts
17 May 24 i+* Re: Every D correctly simulated by H never reaches its final state and halts6olcott
17 May 24 ii+* Re: Every D correctly simulated by H never reaches its final state and halts4Mikko
17 May 24 iii`* Re: Every D correctly simulated by H never reaches its final state and halts3olcott
18 May 24 iii +- Re: Every D correctly simulated by H never reaches its final state and halts1Richard Damon
18 May 24 iii `- Re: Every D correctly simulated by H never reaches its final state and halts1joes
18 May 24 ii`- Re: Every D correctly simulated by H never reaches its final state and halts1Richard Damon
19 May 24 i`* Re: Every D correctly simulated by H never reaches its final state and halts --- Admitted Liar2olcott
19 May 24 i `- Re: Every D correctly simulated by H never reaches its final state and halts --- Olcott is an Admitted Liar1Richard Damon
18 May 24 `- Re: Every D correctly simulated by H never reaches its final state and halts1immibis

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