singleton

set with exactly one element
Thing general Q1165112
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Summary

singleton ranks in the top 2% of general entities by monthly Wikipedia readership (493 views/month).[1]

Key Facts

  • singleton followed null tuple[2].
  • singleton was followed by ordered pair[3].
  • singleton was followed by unordered pair[4].
  • singleton is a type of 𝑛-tuple[5].
  • singleton is a type of group of 1[6].
  • singleton is a type of unordered 𝑛-tuple[7].
  • singleton is a type of set[8].
  • singleton's said to be the same as is recorded as monad[9].
  • singleton's has characteristic is recorded as list of values as qualifiers[10].
  • singleton's equivalent class is recorded as http://www.ease-crc.org/ont/SOMA.owl#Singleton[11].
  • singleton's different from is recorded as monad[12].
  • singleton's different from is recorded as singleton pattern[13].
  • singleton's set cardinality is recorded as 1[14].
  • singleton's maintained by WikiProject is recorded as WikiProject Mathematics[15].
  • singleton's P14853 is recorded as 0001055[16].

Body

Definition and Type

Recorded subclass of include 𝑛-tuple[5], group of 1[6], unordered 𝑛-tuple[7], and set[8].

Why It Matters

singleton ranks in the top 2% of general entities by monthly Wikipedia readership (493 views/month).[1] singleton has Wikipedia articles in 22 language editions, a strong signal of global cultural recognition.[17] singleton is known by 51 alternative names across languages and contexts.[18]

References

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

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . SOMA. wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [17] ↑ . Wikidata sitelinks. wikidata.org.
  3. [18] ↑ . 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). singleton. Retrieved October 14, 2026, from https://4ort.xyz/entity/singleton-q1165112-2
MLA “singleton.” 4ort.xyz Knowledge Graph, 4ort.xyz, 14 Oct. 2026, https://4ort.xyz/entity/singleton-q1165112-2.
BibTeX @misc{4ortxyz_singleton-q1165112-2_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{singleton}}, year = {2026}, url = {https://4ort.xyz/entity/singleton-q1165112-2}, note = {Accessed: 2026-10-14}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): singleton — https://4ort.xyz/entity/singleton-q1165112-2 (retrieved 2026-10-14)

Canonical URL: https://4ort.xyz/entity/singleton-q1165112-2 · 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. 8d ago · عُثمان · 2026-10-08 view diff on Wikidata ↗
    Equivalent class → http://www.ease-crc.org/ont/SOMA.owl#Singleton
    Treccani's enciclopedia della matematica id → singoletto, singleton
    Claims rich → —
    "/* wbsetclaim-create:2||1 */ Equivalent class: http://www.ease-crc.org/ont/SOMA.owl#Singleton"
  2. 16d ago · Horcrux · 2026-09-30 view diff on Wikidata ↗
    Treccani's enciclopedia della matematica id → singoletto, singleton
    Wikipedia languages → ['ar', 'ca', 'cs', 'de', 'el', 'en', 'eo', 'es', 'eu', 'fa', 'fr', 'gl', 'he', '
    Claims rich → —
    "/* wbsetclaim-create:2||1 */ Treccani's enciclopedia della matematica id: singoletto"
  3. 5w ago · عُثمان · 2026-09-08 view diff on Wikidata ↗
    Has characteristic → list of values as qualifiers
    Subclass of → —
    Maintained by wikiproject → WikiProject Mathematics
    Said to be the same as → monad
    + 9 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ P14853: 0001055"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.