projection

idempotent mapping of a set into its subset
Thing geometric_concept Q13415428
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projection

Summary

projection is a geometric concept[1]. projection draws 508 Wikipedia views per month (geometric_concept category, ranking #12 of 15).[2]

Key Facts

  • projection's instance of is recorded as geometric concept[3].
  • projection is a type of surjective function[4].
  • projection is a type of function[5].
  • projection is a type of idempotent function[6].
  • projection's described by source is recorded as New Encyclopedic Dictionary[7].
  • projection's described by source is recorded as Armenian Soviet Encyclopedia, vol. 9[8].
  • projection's described by source is recorded as Encyclopædia Britannica 11th edition[9].
  • projection's has characteristic is recorded as domain of a partial function[10].
  • projection's has characteristic is recorded as subset[11].
  • projection's has characteristic is recorded as idempotence[12].
  • projection's different from is recorded as projection[13].
  • projection's maintained by WikiProject is recorded as WikiProject Mathematics[14].

Body

Definition and Type

projection's instance of is recorded as geometric concept[3]. Recorded subclass of include surjective function[4], function[5], and idempotent function[6].

Why It Matters

projection draws 508 Wikipedia views per month (geometric_concept category, ranking #12 of 15).[2] projection has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[15] projection is known by 7 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] . 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] . 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). projection. Retrieved May 3, 2026, from https://4ort.xyz/entity/projection-q13415428
MLA “projection.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/projection-q13415428.
BibTeX @misc{4ortxyz_projection-q13415428_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{projection}}, year = {2026}, url = {https://4ort.xyz/entity/projection-q13415428}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): projection — https://4ort.xyz/entity/projection-q13415428 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/projection-q13415428 · 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. 16d ago · Twofivesixbot bot · 2026-05-17 view diff on Wikidata ↗
    Instance of geometric concept
    Aliases
    Different from projection
    Described by source New Encyclopedic Dictionary, Armenian Soviet Encyclopedia, vol. 9, Encyclopædia Britannica 11th edition
    + 5 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|6 */ [[Property:P2347]]: 8992, mv to monolingual text names on YSO statements"
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