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pi-system

family of sets closed under intersection
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pi-system

Summary

pi-system ranks in the top 2% of general entities by monthly Wikipedia readership (92 views/month).[1]

Key Facts

  • pi-system's subclass of is recorded as set system[2].
  • pi-system's subclass of is recorded as non-empty set[3].
  • pi-system's Freebase ID is recorded as /m/0bfkvq[4].
  • pi-system's has characteristic is recorded as closure[5].
  • pi-system's Microsoft Academic ID is recorded as 63225836[6].
  • pi-system's ProofWiki ID is recorded as Definition:Pi-System[7].

Why It Matters

pi-system ranks in the top 2% of general entities by monthly Wikipedia readership (92 views/month).[1] pi-system has Wikipedia articles in 7 language editions, a strong signal of global cultural recognition.[8] pi-system is known by 9 alternative names across languages and contexts.[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.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [8] ↑ . Wikidata sitelinks. wikidata.org.
  3. [9] ↑ . 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). pi-system. Retrieved April 10, 2026, from https://4ort.xyz/entity/pi-system
MLA “pi-system.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/pi-system.
BibTeX @misc{4ortxyz_pi-system_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{pi-system}}, year = {2026}, url = {https://4ort.xyz/entity/pi-system}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): pi-system — https://4ort.xyz/entity/pi-system (retrieved 2026-04-10)

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