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Barcan formula

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Barcan formula

Summary

Barcan formula is a formula[1]. It draws 19 Wikipedia views per month (formula category, ranking #122 of 501).[2]

Key Facts

  • Barcan formula is credited with the discovery of Ruth Barcan Marcus[3].
  • Barcan formula's instance of is recorded as formula[4].
  • Ruth Barcan Marcus is named after Barcan formula[5].
  • Barcan formula's Freebase ID is recorded as /m/01kh_j[6].
  • Barcan formula's defining formula is recorded as \forall x \Box Fx \rightarrow \Box \forall x Fx[7].
  • Barcan formula's JSTOR topic ID is recorded as barcan-formula[8].
  • Barcan formula's nLab ID is recorded as Barcan formula[9].
  • Barcan formula's maintained by WikiProject is recorded as WikiProject Mathematics[10].
  • Barcan formula's Microsoft Academic ID is recorded as 38977897[11].

Body

Works and Contributions

Barcan formula is credited with the discovery of Ruth Barcan Marcus[3].

Why It Matters

Barcan formula draws 19 Wikipedia views per month (formula category, ranking #122 of 501).[2]

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [3] ↑ . 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.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.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). Barcan formula. Retrieved May 3, 2026, from https://4ort.xyz/entity/barcan-formula
MLA “Barcan formula.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/barcan-formula.
BibTeX @misc{4ortxyz_barcan-formula_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Barcan formula}}, year = {2026}, url = {https://4ort.xyz/entity/barcan-formula}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Barcan formula — https://4ort.xyz/entity/barcan-formula (retrieved 2026-05-03)

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