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cofinality

smallest cardinality of a cofinal subset in mathematics
Thing cardinal_function Q1283623
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cofinality

Summary

cofinality is a cardinal function[1]. cofinality draws 95 Wikipedia views per month (cardinal_function category, ranking #1 of 1).[2]

Key Facts

  • cofinality's instance of is recorded as cardinal function[3].
  • cofinality's Freebase ID is recorded as /m/01yw8[4].
  • cofinality's defining formula is recorded as \operatorname{cf}(X)=\min{|C|\colon C\subset X,\;\forall x\in X\exists c\in C\colon x\le c}[5].
  • cofinality's JSTOR topic ID is recorded as cofinality[6].
  • cofinality's nLab ID is recorded as cofinality[7].
  • cofinality's maintained by WikiProject is recorded as WikiProject Mathematics[8].
  • cofinality's Microsoft Academic ID is recorded as 148070024[9].
  • cofinality's ProofWiki ID is recorded as Definition:Cofinality[10].
  • cofinality's in defining formula is recorded as C[11].
  • cofinality's in defining formula is recorded as X[12].
  • cofinality's in defining formula is recorded as \operatorname{cf}(-)[13].
  • cofinality's PlanetMath ID is recorded as Cofinality[14].
  • cofinality's OpenAlex ID is recorded as C148070024[15].

Why It Matters

cofinality draws 95 Wikipedia views per month (cardinal_function category, ranking #1 of 1).[2] cofinality has Wikipedia articles in 13 language editions, a strong signal of global cultural recognition.[16]

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . Freebase Data Dumps. 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.
  13. [15] ↑ . 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. [16] ↑ . Wikidata sitelinks. 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). cofinality. Retrieved May 3, 2026, from https://4ort.xyz/entity/cofinality
MLA “cofinality.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/cofinality.
BibTeX @misc{4ortxyz_cofinality_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{cofinality}}, year = {2026}, url = {https://4ort.xyz/entity/cofinality}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): cofinality — https://4ort.xyz/entity/cofinality (retrieved 2026-05-03)

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