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PSPACE

complexity class
Thing complexity_class Q500716
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PSPACE

Summary

PSPACE is a complexity class[1]. PSPACE has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • PSPACE's instance of is recorded as complexity class[3].
  • PSPACE is part of E[4].
  • PSPACE's said to be the same as is recorded as IP[5].
  • PSPACE's said to be the same as is recorded as QIP[6].
  • PSPACE comprises PH[7].
  • PSPACE comprises PSPACE-complete[8].
  • PSPACE comprises PP[9].

Body

Definition and Type

PSPACE's instance of is recorded as complexity class[3].

Use and Application

Components include PH[7], a complexity class[10]; PSPACE-complete[8], a complexity class[11]; and PP[9], a complexity class[12]. PSPACE is part of E[4].

Why It Matters

PSPACE has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[2] PSPACE is known by 13 alternative names across languages and contexts.[13]

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] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.

Inline context (facts about related entities)

  1. [10] ↑ . Wikidata. wikidata.org. → on this site
  2. [11] ↑ . Wikidata. wikidata.org. → on this site
  3. [12] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [13] ↑ . 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). PSPACE. Retrieved May 3, 2026, from https://4ort.xyz/entity/pspace
MLA “PSPACE.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/pspace.
BibTeX @misc{4ortxyz_pspace_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{PSPACE}}, year = {2026}, url = {https://4ort.xyz/entity/pspace}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): PSPACE — https://4ort.xyz/entity/pspace (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/pspace · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 5w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 1PY7lk
    Part of → —
    Aliases → —
    Instance of → complexity class
    + 5 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.