• In computability theory, the halting problem is the problem of determining, from a description of an arbitrary computer program and an input, whether the...
    53 KB (7,356 words) - 16:32, 10 May 2025
  • one could calculate the halting problem for all programs of a size up to N. Let the program p for which the halting problem is to be solved be N bits...
    18 KB (2,321 words) - 17:59, 13 April 2025
  • Rice's theorem (category Undecidable problems)
    for every program. The theorem generalizes the undecidability of the halting problem. It has far-reaching implications on the feasibility of static analysis...
    12 KB (1,712 words) - 11:17, 18 March 2025
  • Thumbnail for Busy beaver
    computable function. This has implications in computability theory, the halting problem, and complexity theory. The concept of a busy beaver was first introduced...
    66 KB (7,914 words) - 21:22, 30 April 2025
  • Thumbnail for NP-hardness
    NP-hardness (redirect from NP-Hard Problem)
    that the halting problem is NP-hard but not NP-complete. For example, the Boolean satisfiability problem can be reduced to the halting problem by transforming...
    9 KB (1,119 words) - 00:35, 28 April 2025
  • an algorithm that always leads to a correct yes-or-no answer. The halting problem is an example: it can be proven that there is no algorithm that correctly...
    14 KB (1,921 words) - 21:06, 21 February 2025
  • include the limits of knowledge, ignorabimus, unknown unknowns, the halting problem, and chaos theory. Nicholas Rescher provides the most recent focused...
    10 KB (1,250 words) - 12:22, 3 February 2025
  • is not recursive. The halting problem is therefore called non-computable or undecidable. An extension of the halting problem is called Rice's theorem...
    21 KB (3,293 words) - 07:21, 10 November 2024
  • order Horn clauses. The halting problem (determining whether a Turing machine halts on a given input) and the mortality problem (determining whether it...
    14 KB (1,586 words) - 03:29, 24 March 2025
  • Thumbnail for Kolmogorov complexity
    Cantor's diagonal argument, Gödel's incompleteness theorem, and Turing's halting problem. In particular, no program P computing a lower bound for each text's...
    58 KB (7,565 words) - 20:43, 12 April 2025
  • problem can be of any complexity class. Even undecidable problems, such as the halting problem, can be used. An oracle machine can be conceived as a Turing...
    15 KB (2,028 words) - 00:13, 18 April 2025
  • the terminology. Not every set of natural numbers is computable. The halting problem, which is the set of (descriptions of) Turing machines that halt on...
    54 KB (6,425 words) - 20:53, 17 February 2025
  • correspondence problem is an undecidable decision problem that was introduced by Emil Post in 1946. Because it is simpler than the halting problem and the...
    25 KB (2,521 words) - 16:01, 20 December 2024
  • ^{2}t)} time. This version of the halting problem is among the simplest, most-easily described undecidable decision problems: Given an arbitrary positive integer...
    17 KB (2,134 words) - 15:36, 8 November 2024
  • not Turing-computable. For example, a machine that could solve the halting problem would be a hypercomputer; so too would one that could correctly evaluate...
    30 KB (3,368 words) - 21:51, 20 April 2025
  • decision problem is undecidable. However, that there is some Turing machine with undecidable halting problem means that the halting problem for a universal...
    21 KB (3,406 words) - 18:55, 2 January 2025
  • factors of n. An example of a computational problem without a solution is the Halting problem. Computational problems are one of the main objects of study in...
    8 KB (984 words) - 22:51, 16 September 2024
  • Hence, the problem is known to need more than exponential run time. Even more difficult are the undecidable problems, such as the halting problem. They cannot...
    63 KB (7,784 words) - 06:53, 25 April 2025
  • Thumbnail for Turing machine
    whether M will eventually produce s. This is due to the fact that the halting problem is unsolvable, which has major implications for the theoretical limits...
    73 KB (9,420 words) - 09:35, 8 April 2025
  • Thumbnail for Decision problem
    them. The halting problem is an important undecidable decision problem; for more examples, see list of undecidable problems. Decision problems can be ordered...
    10 KB (1,261 words) - 20:16, 18 January 2025
  • termination analysis utilizes this principle in order to solve the universal halting problem for a certain class of programs. When applied to general programs,...
    5 KB (640 words) - 10:19, 13 August 2023
  • method' which decides whether any given Turing machine halts or not (the halting problem). If 'algorithm' is understood as meaning a method that can be represented...
    19 KB (2,642 words) - 09:57, 5 May 2025
  • unsolvable, and Turing's theorem that there is no algorithm to solve the halting problem. The incompleteness theorems apply to formal systems that are of sufficient...
    92 KB (12,134 words) - 16:21, 9 May 2025
  • proof (termination proof) can never be fully automated, since the halting problem is undecidable. For example, successively searching through integers...
    7 KB (658 words) - 20:32, 14 March 2025
  • determining whether it is a decider is an undecidable problem. This is a variant of the halting problem, which asks for whether a Turing machine halts on...
    9 KB (1,302 words) - 23:35, 10 September 2023
  • proved that the problem Given g and n, does the sequence of iterates gk(n) reach 1? is undecidable, by representing the halting problem in this way. Closer...
    57 KB (7,104 words) - 10:48, 7 May 2025
  • whether a computer program contains an infinite loop or not; this is the halting problem. This differs from "a type of computer program that runs the same instructions...
    22 KB (2,605 words) - 22:48, 27 April 2025
  • Gödel's first incompleteness theorem Tarski's undefinability theorem Halting problem Kleene's recursion theorem Diagonalization (disambiguation) This disambiguation...
    574 bytes (87 words) - 10:58, 6 August 2024
  • are so-called undecidable problems, such as the halting problem for Turing machines. Some well-known difficult abstract problems that have been solved relatively...
    7 KB (936 words) - 12:10, 24 March 2025
  • types. The halting problem is not in ExpGenP for any model of Turing machine, The Post correspondence problem is in ExpGenP. The decision problem for Presburger...
    18 KB (2,706 words) - 15:11, 31 May 2024