Home › Entities › Theorem › seven circles theorem

seven circles theorem

about a chain of six circles tangent to a seventh circle and each to its 2 neighbors
Intangible Theorem Q7457534

Facts

4 properties
Instance of
theorem
Discoverer or inventor
John Alfred Tyrrell, John Evelyn[2][3]
Maintained by WikiProject
WikiProject Mathematics[5]
Statement describes
circle[4]
🏷️ Also known as
en seven circles theorem de Sieben-Kreise-Satz fr théorème des sept cercles id Teorema tujuh lingkaran ja 7円定理 ru теорема о семи окружностях tr Yedi çember teoremi vi Định lý bảy đường tròn
🔖 Identifiers · 3
Freebase ID
/m/04n2t15
MathWorld ID
SevenCirclesTheorem
Microsoft Academic ID (discontinued)
118145055

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Instance of 1
theorem
Maintained by WikiProject 1
WikiProject Mathematics
Statement describes 1
circle
Press Enter · cited answer in seconds

Summary

seven circles theorem is a theorem[1].

Body

Works and Contributions

Credited discoveries include John Alfred Tyrrell[2], a mathematician[6], 1932–1992[7] and John Evelyn[3], a mathematician[8], 1904–1976[9].

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.

Inline context (facts about related entities)

  1. [6] ↑ . Wikidata. wikidata.org. → on this site
  2. [7] ↑ . Wikidata. wikidata.org. → on this site
  3. [8] ↑ . Wikidata. wikidata.org. → on this site
  4. [9] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. 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). seven circles theorem. Retrieved November 7, 2026, from https://4ort.xyz/entity/seven-circles-theorem
MLA “seven circles theorem.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 Nov. 2026, https://4ort.xyz/entity/seven-circles-theorem.
BibTeX @misc{4ortxyz_seven-circles-theorem_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{seven circles theorem}}, year = {2026}, url = {https://4ort.xyz/entity/seven-circles-theorem}, note = {Accessed: 2026-11-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): seven circles theorem — https://4ort.xyz/entity/seven-circles-theorem (retrieved 2026-11-07)

Canonical URL: https://4ort.xyz/entity/seven-circles-theorem · Last refreshed: