clopen set

subset that is both open and closed
Thing type_of_set Q320369
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clopen set

Summary

clopen set is a type of set[1]. It draws 138 Wikipedia views per month (type_of_set category, ranking #5 of 9).[2]

Key Facts

  • clopen set's instance of is recorded as type of set[3].
  • clopen set's subclass of is recorded as open set[4].
  • clopen set's subclass of is recorded as closed set[5].
  • clopen set's part of is recorded as list of types of sets[6].
  • clopen set's Freebase ID is recorded as /m/01hy02[7].
  • clopen set's different from is recorded as interval[8].
  • clopen set's BabelNet ID is recorded as 01646430n[9].
  • clopen set's MathWorld ID is recorded as Clopen[10].
  • clopen set's nLab ID is recorded as clopen set[11].
  • clopen set's maintained by WikiProject is recorded as WikiProject Mathematics[12].
  • clopen set's Microsoft Academic ID is recorded as 152039955[13].
  • clopen set's ProofWiki ID is recorded as Definition:Clopen_Set[14].
  • clopen set's ScienceDirect topic ID is recorded as mathematics/clopen-set[15].
  • clopen set's ScienceDirect topic ID is recorded as mathematics/clopen-subset[16].
  • clopen set's ScienceDirect topic ID is recorded as mathematics/clopen[17].

Why It Matters

clopen set draws 138 Wikipedia views per month (type_of_set category, ranking #5 of 9).[2] It has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.[18] It is known by 12 alternative names across languages and contexts.[19]

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] . Freebase Data Dumps. wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . BabelNet. wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [18] . Wikidata sitelinks. wikidata.org.
  3. [19] . 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). clopen set. Retrieved May 3, 2026, from https://4ort.xyz/entity/clopen-set
MLA “clopen set.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/clopen-set.
BibTeX @misc{4ortxyz_clopen-set_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{clopen set}}, year = {2026}, url = {https://4ort.xyz/entity/clopen-set}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): clopen set — https://4ort.xyz/entity/clopen-set (retrieved 2026-05-03)

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