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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: comp.theory
Subject: Re: Anyone that disagrees with this is not telling the truth V4
Date: Tue, 20 Aug 2024 12:07:30 +0300
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On 2024-08-19 12:08:51 +0000, olcott said:
> On 8/19/2024 2:30 AM, Mikko wrote:
>> On 2024-08-18 12:25:05 +0000, olcott said:
>>
>
> *Everything that is not expressly stated below is*
> *specified as unspecified*
>
> void DDD()
> {
> HHH(DDD);
> return;
> }
>
> _DDD()
> [00002172] 55 push ebp ; housekeeping
> [00002173] 8bec mov ebp,esp ; housekeeping
> [00002175] 6872210000 push 00002172 ; push DDD
> [0000217a] e853f4ffff call 000015d2 ; call HHH(DDD)
> [0000217f] 83c404 add esp,+04
> [00002182] 5d pop ebp
> [00002183] c3 ret
> Size in bytes:(0018) [00002183]
>
> *It is a basic fact that DDD emulated by HHH according to*
> *the semantics of the x86 language cannot possibly stop*
> *running unless aborted* (out of memory error excluded)
>
> X = DDD emulated by HHH∞ according to the semantics of the x86 language
> Y = HHH∞ never aborts its emulation of DDD
> Z = DDD never stops running
>
> My claim boils down to this: (X ∧ Y) ↔ Z
>
> void EEE()
> {
> HERE: goto HERE;
> }
>
> HHHn predicts the behavior of DDD the same
> way that HHHn predicts the behavior of EEE.
>
>>>
>>> That HHH <is> and x86 emulator <is> sufficient to
>>> determine exactly what the behavior of DDD emulated by HHH
>>> according to the semantics of the x86 language would be.
>>
>> The last "would be" means that the clause is conterfactual.
>> But why would anybody care about the conterfactual behaviour?
>>
>
> It is not counter-factual.
Then it is incorrect. The meaning of the word "would" is that
the containing clause is counter-factual.
--
Mikko