Borel hierarchy

Mathematical logic hierarchy
Thing hierarchy Q893487
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Borel hierarchy

Summary

Borel hierarchy is a hierarchy[1]. It draws 28 Wikipedia views per month (hierarchy category, ranking #11 of 13).[2]

Key Facts

  • Borel hierarchy's instance of is recorded as hierarchy[3].
  • Émile Borel is named after Borel hierarchy[4].
  • Borel hierarchy's Freebase ID is recorded as /m/0drkl8[5].
  • Borel hierarchy's facet of is recorded as sigma-algebra[6].
  • Borel hierarchy's Microsoft Academic ID is recorded as 25942563[7].
  • Borel hierarchy's OpenAlex ID is recorded as C25942563[8].

Why It Matters

Borel hierarchy draws 28 Wikipedia views per month (hierarchy category, ranking #11 of 13).[2]

📑 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). Borel hierarchy. Retrieved May 3, 2026, from https://4ort.xyz/entity/borel-hierarchy
MLA “Borel hierarchy.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/borel-hierarchy.
BibTeX @misc{4ortxyz_borel-hierarchy_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Borel hierarchy}}, year = {2026}, url = {https://4ort.xyz/entity/borel-hierarchy}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Borel hierarchy — https://4ort.xyz/entity/borel-hierarchy (retrieved 2026-05-03)

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