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On 7/28/2024 3:59 AM, Mikko wrote:But since the definition that Professor Sipser uses of a "Correct Simulation" is one that exactly reproduces the behavior of the machine described by the input, and thus can not "abort" it simulation, but can only stop when it reaches a final state, your decider HHH does not do such a simulation (orit wouldn't be a decider) so it can't use itself as a basis to abort, and it doesn't correctly determine that an ACTUAL correct simulation will not halt, as since your H DOES abort and return, the simulation by the real correct simulaiton will reach the end, thus your H was just incorrect to do the abort.On 2024-07-27 20:05:31 +0000, olcott said:This is only seems that way because every reviewer makes sureIf you had sufficient understanding of the x86 language>
you would know that DDD is correctly emulated by HHH.
If you had suffient understanding of x86 language and correctness
you would know that DDD is incorrectly emnulated by HHH.
>
to ignore one aspect of the basis of another.
<MIT Professor Sipser agreed to ONLY these verbatim words 10/13/2022>
If simulating halt decider H correctly simulates its input D
until H correctly determines that its simulated D would never
stop running unless aborted then
H can abort its simulation of D and correctly report that D
specifies a non-halting sequence of configurations.
</MIT Professor Sipser agreed to ONLY these verbatim words 10/13/2022>
_DDD()Nope, the CORRECT simulation of DDD will halt BECAUSE your HHH aborts its simulation, and thus doesn't do a correct simulation of the input, and thus can't claim the second paragraph.
[00002163] 55 push ebp ; housekeeping
[00002164] 8bec mov ebp,esp ; housekeeping
[00002166] 6863210000 push 00002163 ; push DDD
[0000216b] e853f4ffff call 000015c3 ; call HHH(DDD)
[00002170] 83c404 add esp,+04
[00002173] 5d pop ebp
[00002174] c3 ret
Size in bytes:(0018) [00002174]
DDD is correctly emulated by HHH until HHH correctly
determines that
*its simulated DDD would never stop running unless aborted*
*its simulated DDD would never stop running unless aborted*
*its simulated DDD would never stop running unless aborted*
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