undecidable problem

decision problem for which it is impossible to construct an algorithm that always leads to a correct yes-or-no answer
Thing type_of_problem Q3502995
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undecidable problem

Summary

undecidable problem is a type of problem[1]. It draws 293 Wikipedia views per month (type_of_problem category, ranking #6 of 17).[2]

Key Facts

  • undecidable problem's instance of is recorded as type of problem[3].
  • undecidable problem's subclass of is recorded as decision problem[4].
  • undecidable problem's opposite of is recorded as decidable problem[5].
  • undecidable problem's Freebase ID is recorded as /m/03nn3tw[6].
  • undecidable problem's topic's main category is recorded as Category:Undecidable problems[7].
  • undecidable problem's different from is recorded as unsolvable problem[8].
  • undecidable problem's has list is recorded as list of undecidable problems[9].
  • undecidable problem's MathWorld ID is recorded as RecursivelyUndecidable[10].
  • undecidable problem's Dictionary of Algorithms and Data Structures ID is recorded as undecidableProblem[11].
  • undecidable problem's maintained by WikiProject is recorded as WikiProject Mathematics[12].
  • undecidable problem's Microsoft Academic ID is recorded as 192034797[13].
  • undecidable problem's OpenAlex ID is recorded as C192034797[14].

Why It Matters

undecidable problem draws 293 Wikipedia views per month (type_of_problem category, ranking #6 of 17).[2] It has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[15] It is known by 5 alternative names across languages and contexts.[16]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . Freebase Data Dumps. wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [15] . Wikidata sitelinks. wikidata.org.
  3. [16] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). undecidable problem. Retrieved May 3, 2026, from https://4ort.xyz/entity/undecidable-problem
MLA “undecidable problem.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/undecidable-problem.
BibTeX @misc{4ortxyz_undecidable-problem_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{undecidable problem}}, year = {2026}, url = {https://4ort.xyz/entity/undecidable-problem}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): undecidable problem — https://4ort.xyz/entity/undecidable-problem (retrieved 2026-05-03)

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