• 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) - 22:58, 18 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 (2,319 words) - 13:06, 12 May 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
  • 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
  • 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
  • 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
  • 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
  • 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) - 10:24, 12 May 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
  • 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
  • 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
  • Thumbnail for Decision problem
    accordingly. Some of the most important problems in mathematics are undecidable, e.g. the halting problem. The field of computational complexity theory...
    10 KB (1,246 words) - 09:36, 19 May 2025
  • 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
  • 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
  • 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
  • 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
  • ^{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
  • 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
  • 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
  • input program computes a total function. It is closely related to the halting problem, which is to determine whether a given program halts for a given input...
    16 KB (1,730 words) - 20:45, 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
  • Mortality (computability theory) (category Undecidable problems)
    computability theory, the mortality problem is a decision problem related to the halting problem. For Turing machines, the halting problem can be stated as follows:...
    4 KB (524 words) - 03:28, 24 March 2025
  • 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 (3,369 words) - 19:26, 13 May 2025
  • undecidability of the halting problem. It is, however, decidable for context-free grammars. Intersection non-emptiness problem Sipser, Michael (2012)...
    2 KB (210 words) - 19:40, 14 December 2023
  • 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
  • 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
  • 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
  • computably enumerable (cf. picture for a fixed x). This set encodes the halting problem as it describes the input parameters for which each Turing machine...
    9 KB (1,318 words) - 20:47, 12 May 2025
  • 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 (12,173 words) - 10:15, 18 May 2025