Liste des Groupes | Revenir à c theory |
Analysis of Flibble’s Latest: Detecting vs. Simulating Infinite RecursionCorrect, it must be able to correctly determine that the hypothetical complete simulation of the input program (which includes all it code, and doesn't change in the hypthetical case) will not halt.
=========================================================================
Overview:
---------
Flibble distinguishes between detecting infinite recursion and simulating
it. His argument is that a Simulating Halt Decider (SHD) does not need to
perform unbounded execution to reach a decision—it only needs to *detect*
unbounded behavior structurally. This refinement aligns with the demands
placed on any decider: that it halt in finite time.
Key Statement:Wrong, because you can only detect infinte recursion if it is actually there.
--------------"It is sufficient for an SHD to DETECT infinite recursion without havingto SIMULATE it."
Implications:
-------------
- SHDs must not rely on runtime behavior to conclude non-halting.
- Instead, SHDs should be built to identify infinite loops *structurally*Yes.
(e.g., static analysis, recursion without base case, etc.).
Relation to Flibble's Law:FALSE. Violation of the rules of the system.
--------------------------"If a problem permits infinite behavior in its formulation, it permitsinfinite analysis of that behavior in its decidability scope."
This law supports the claim that analyzing infinite behavior (inYou can claim that it may NEED infinite analysis, you can not claim the right to DO infinite analysis.
principle) is necessary when such behavior is permitted. It doesn't mean
running forever; it means using tools that can *infer* infinite behavior
within a finite decision process.
Theoretical Soundness:No it doesn't.
----------------------
- Aligns with static analysis and type theory approaches.
- Matches how total languages and proof assistants handle recursion (e.g.,Nope.
Agda, Coq).
- Respects the requirement that deciders halt in finite time.??? How can
Misconceptions Addressed:Ok, but they still need to answer about the actual behavior of the input, as defined by the behavior when we execute the program it represents.
-------------------------
- SHDs are not broken simulators—they are structural analyzers.
- Overflow or crash behavior is not failure—it’s evidence of an ill-formedBut since the "pathological input" isn't "ill-formed" that isn't an out for the SHD.
or semantically invalid input.
- Detection ≠ simulation; structure ≠ behavior.But correct answer is defined by actual behavior of direct exectution.
Limitations:In other words, you ADMIT that the Halting Problem answer, that no univerally correct Halt Deciders exist.
------------
- SHDs remain partial—they cannot detect *all* forms of infinite recursion.
- But this is not a flaw—it is a principled limitation, consistent with
Flibble’s position that some inputs are semantically malformed and should
be excluded from the decidable domain.
Conclusion:But you can't "redefine" the Halting Problem and then say you have answered the Halting Problem.
-----------
Flibble sharpens his argument by clarifying that SHDs are not required to
simulate infinite execution. They are expected to *detect* infinite
behavior structurally and respond in finite time. This keeps them within
the bounds of what a decider must be and strengthens the philosophical
coherence of his redefinition of the Halting Problem.
Les messages affichés proviennent d'usenet.