Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.theory > #107353
| From | Mikko <mikko.levanto@iki.fi> |
|---|---|
| Newsgroups | comp.theory |
| Subject | Re: D correctly simulated by H proved for THREE YEARS --- rewritten |
| Date | 2024-06-18 10:54 +0300 |
| Organization | - |
| Message-ID | <v4reg1$18e6d$1@dont-email.me> (permalink) |
| References | (26 earlier) <v4kbkv$3h3iu$2@dont-email.me> <v4m09f$3tvpi$1@dont-email.me> <v4mmai$1qt6$1@dont-email.me> <v4oo7t$hpjr$1@dont-email.me> <v4pcds$ln46$4@dont-email.me> |
On 2024-06-17 13:07:08 +0000, olcott said:
> On 6/17/2024 2:22 AM, Mikko wrote:
>> On 2024-06-16 12:37:38 +0000, olcott said:
>>
>>> On 6/16/2024 1:21 AM, Fred. Zwarts wrote:
>>>> Op 15.jun.2024 om 17:23 schreef olcott:
>>>>> On 6/15/2024 10:12 AM, Fred. Zwarts wrote:
>>>>>> Op 15.jun.2024 om 16:48 schreef olcott:
>>>>>>> On 6/15/2024 9:37 AM, Fred. Zwarts wrote:
>>>>>>>>
>>>>>>>> Is this the new definition of "pathological"?
>>>>>>>
>>>>>>> *It is the same thing that I have been saying all along*
>>>>>>>
>>>>>>> 00 typedef void (*ptr)(); // pointer to void function
>>>>>>> 01
>>>>>>> 02 int HH(ptr P, ptr I);
>>>>>>> 03
>>>>>>> 04 void DDD(int (*x)())
>>>>>>> 05 {
>>>>>>> 06 HH(x, x);
>>>>>>> 07 return;
>>>>>>> 08 }
>>>>>>> 09
>>>>>>> 10 int main()
>>>>>>> 11 {
>>>>>>> 12 HH(DDD,DDD);
>>>>>>> 13 }
>>>>>>>
>>>>>>> Line 12 main()
>>>>>>> invokes HH(DDD,DDD); that simulates DDD()
>>>>>>>
>>>>>>> *REPEAT UNTIL outer HH aborts*
>>>>>>> Line 06 simulated DDD()
>>>>>>> invokes simulated HH(DDD,DDD); that simulates DDD()
>>>>>>>
>>>>>>> DDD correctly simulated by HH never reaches its own "return"
>>>>>>> instruction and halts.
>>>>>>
>>>>>> So, you agree that you are changing definitions.
>>>>>
>>>>> Not at all. The original definition still applies when it
>>>>> is made more generic.
>>>>>
>>>>> 01 int D(ptr p)
>>>>> 02 {
>>>>> 03 int Halt_Status = H(p, p);
>>>>> 04 if (Halt_Status)
>>>>> 05 HERE: goto HERE;
>>>>> 06 return Halt_Status;
>>>>> 07 }
>>>>>
>>>>> D correctly simulated by H has isomorphic behavior to DDD
>>>>> correctly simulated by HH, both get stuck in recursive
>>>>> simulation.
>>>>>
>>>>
>>>> When asked what is a pathological program olcott replied:
>>>> Op 14.jun.2024 om 21:18 schreef olcott:
>>>>> For any program H that might determine whether programs halt, a
>>>>> "pathological" program D, called with some input, can pass its own
>>>>> source and its input to H and then specifically do the opposite of what
>>>>> H predicts D will do. No H can exist that handles this case.
>>>>
>>>>
>>>> No he defines a "pathological" program as a program that calls H.
>>>> All words about doing the opposite of what H predicts, have disappeared.
>>>> Everyone sees the difference, but he is stuck is rebuttal mode and
>>>> denies the change of definition.
>>>>
>>>
>>> The code that "does the opposite" was never reachable by
>>> a simulating halt decider thus does not change the problem
>>> for a simulating halt decider when this code is removed.
>>>
>>> By simplifying the problem we gain cognitive leverage. With
>>> less details to pay attention to the while simplified problem
>>> can be more deeply understood.
>>>
>>>> His only excuse is that in both cases a recursive simulation is seen,
>>>> but that is not the point.
>>>> He had already proved earlier that in
>>>>
>>>> int main()
>>>> {
>>>> return H(main, 0);
>>>> }
>>>>
>>>> H produces a false negative, because main halts, whereas H reports
>>>
>>> The input does not halt and deciders are only accountable
>>> for the behavior of their input.
>>
>> If the above main does not halt then H it calls is not a decider.
>>
>
> That is merely a more difficult to understand
> example of this simplest possible case.
>
> void DDD()
> {
> H0(DDD);
> }
>
> int main()
> {
> H0(DDD);
> }
The only parts that are not easy to understand are H and H0 because
they are not shown. The rest of both examples are simple enough.
--
Mikko
Back to comp.theory | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) olcott <polcott333@gmail.com> - 2024-06-08 13:47 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) olcott <polcott333@gmail.com> - 2024-06-08 14:49 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Richard Damon <richard@damon-family.org> - 2024-06-08 16:32 -0400
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Richard Damon <richard@damon-family.org> - 2024-06-08 16:32 -0400
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-09 08:33 +0200
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) olcott <polcott333@gmail.com> - 2024-06-09 07:21 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Richard Damon <richard@damon-family.org> - 2024-06-09 14:08 -0400
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) olcott <polcott333@gmail.com> - 2024-06-09 09:13 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Richard Damon <richard@damon-family.org> - 2024-06-09 14:08 -0400
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Mikko <mikko.levanto@iki.fi> - 2024-06-10 10:48 +0300
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) olcott <polcott333@gmail.com> - 2024-06-10 10:09 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Richard Damon <richard@damon-family.org> - 2024-06-10 23:32 -0400
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Mikko <mikko.levanto@iki.fi> - 2024-06-11 11:02 +0300
DDD correctly simulated by HH cannot possibly halt olcott <polcott333@gmail.com> - 2024-06-11 12:24 -0500
Re: DDD correctly simulated by HH cannot possibly halt Richard Damon <richard@damon-family.org> - 2024-06-11 21:46 -0400
Re: DDD correctly simulated by HH cannot possibly halt Mikko <mikko.levanto@iki.fi> - 2024-06-12 10:20 +0300
Re: DDD correctly simulated by HH cannot possibly halt olcott <polcott333@gmail.com> - 2024-06-12 10:17 -0500
Re: DDD correctly simulated by HH cannot possibly halt Mikko <mikko.levanto@iki.fi> - 2024-06-15 15:03 +0300
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Mikko <mikko.levanto@iki.fi> - 2024-06-15 14:59 +0300
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) olcott <polcott333@gmail.com> - 2024-06-10 00:17 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-10 09:09 +0200
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) olcott <polcott333@gmail.com> - 2024-06-10 08:52 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) joes <noreply@example.com> - 2024-06-10 15:35 +0000
Proof that D correctly simulated by H has different behavior than D(D) olcott <polcott333@gmail.com> - 2024-06-10 10:39 -0500
Re: Proof that D correctly simulated by H has different behavior than D(D) Richard Damon <richard@damon-family.org> - 2024-06-11 21:59 -0400
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-10 21:15 +0200
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Richard Damon <richard@damon-family.org> - 2024-06-11 21:48 -0400
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) olcott <polcott333@gmail.com> - 2024-06-10 14:21 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-10 21:41 +0200
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) olcott <polcott333@gmail.com> - 2024-06-10 14:47 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-11 09:21 +0200
D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-11 12:07 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-12 08:18 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-12 09:47 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-12 20:19 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-12 13:24 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-12 21:13 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-12 14:20 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-12 21:46 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-12 14:53 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-13 10:15 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-13 07:44 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-13 21:33 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-13 14:41 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-14 11:59 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-14 07:49 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-14 21:00 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-14 14:18 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-14 22:03 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-14 15:46 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-15 11:03 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-15 07:12 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten Richard Damon <richard@damon-family.org> - 2024-06-15 09:51 -0400
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-15 16:06 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-15 09:13 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten Richard Damon <richard@damon-family.org> - 2024-06-15 10:29 -0400
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-15 16:37 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-15 09:48 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten Richard Damon <richard@damon-family.org> - 2024-06-15 11:02 -0400
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-15 17:12 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-15 10:23 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten Richard Damon <richard@damon-family.org> - 2024-06-15 11:39 -0400
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-16 08:21 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-16 07:37 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten Richard Damon <richard@damon-family.org> - 2024-06-16 13:30 -0400
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-16 21:08 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-17 08:39 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-17 16:21 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-17 09:35 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-17 16:51 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten Mikko <mikko.levanto@iki.fi> - 2024-06-17 10:22 +0300
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-17 08:07 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten Mikko <mikko.levanto@iki.fi> - 2024-06-18 10:54 +0300
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-18 07:55 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-18 11:16 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-18 07:43 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-18 17:25 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-18 10:39 -0500
Re: D correctly simulated by H proved for THREE YEARS --- rewritten "Fred. Zwarts" <F.Zwarts@HetNet.nl> - 2024-06-18 17:53 +0200
Re: D correctly simulated by H proved for THREE YEARS --- rewritten Mikko <mikko.levanto@iki.fi> - 2024-06-18 19:32 +0300
Re: D correctly simulated by H proved for THREE YEARS --- rewritten olcott <polcott333@gmail.com> - 2024-06-18 11:41 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) Richard Damon <richard@damon-family.org> - 2024-06-11 22:17 -0400
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Richard Damon <richard@damon-family.org> - 2024-06-10 07:16 -0400
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) olcott <polcott333@gmail.com> - 2024-06-10 12:54 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) joes <noreply@example.com> - 2024-06-10 18:21 +0000
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) olcott <polcott333@gmail.com> - 2024-06-10 13:48 -0500
Re: Proof that DD correctly simulated by HH has different behavior than DD(DD) STEP(1) Richard Damon <richard@damon-family.org> - 2024-06-10 23:32 -0400
csiph-web