Sujet : Re: Defining a correct simulating halt decider
De : polcott333 (at) *nospam* gmail.com (olcott)
Groupes : comp.theoryDate : 08. Sep 2024, 13:57:00
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vbk6us$1u1js$2@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11
User-Agent : Mozilla Thunderbird
On 9/8/2024 7:46 AM, joes wrote:
Am Sat, 07 Sep 2024 08:57:00 -0500 schrieb olcott:
On 9/7/2024 3:29 AM, Mikko wrote:
On 2024-09-07 05:12:19 +0000, joes said:
Am Fri, 06 Sep 2024 06:42:48 -0500 schrieb olcott:
On 9/6/2024 6:19 AM, Mikko wrote:
On 2024-09-05 13:24:20 +0000, olcott said:
On 9/5/2024 2:34 AM, Mikko wrote:
On 2024-09-03 13:00:50 +0000, olcott said:
On 9/3/2024 5:25 AM, Mikko wrote:
On 2024-09-02 16:38:03 +0000, olcott said:
>
A halt decider is a Turing machine that computes the mapping
from its finite string input to the behavior that this finite
string specifies.
>
A halt decider needn't compute the full behaviour, only whether
that behaviour is finite or infinite.
>
New slave_stack at:1038c4 Begin Local Halt Decider Simulation
Local Halt Decider: Infinite Recursion Detected Simulation
Stopped
Hence HHH(DDD)==0 is correct
>
Nice to see that you don't disagree with what said.
Unvortunately I can't agree with what you say.
HHH terminates,
os DDD obviously terminates, too. No valid
>
DDD emulated by HHH never reaches it final halt state.
>
If that iis true it means that HHH called by DDD does not return and
therefore is not a ceicder.
The directly executed HHH is a decider.
What does simulating it change about that?
>
If the simulation is incorrect it may change anything.
>
PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR
How? What is pathological?
void DDD()
{
HHH(DDD);
return;
}
That DDD calls its own emulator (a pathological relationship)
makes this DDD and HHH stuck in infinite recursive emulation
unless the outermost HHH aborts its emulation at some point.
Whether HHH aborts its emulation at some point or not DDD
never reaches its final halt state of "return", thus DDD
cannot possibly halt no matter what HHH does.
When HHH sees this it aborts DDD and correctly reports that
it emulated DDD is non halting.
-- Copyright 2024 Olcott "Talent hits a target no one else can hit; Geniushits a target no one else can see." Arthur Schopenhauer
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