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extensionality

logic principle that judges objects to be equal if they have the same external properties
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extensionality

Summary

extensionality ranks in the top 2% of general entities by monthly Wikipedia readership (34 views/month).[1]

Key Facts

  • extensionality's subclass of is recorded as principle[2].
  • extensionality's Freebase ID is recorded as /m/01qzkr[3].
  • extensionality's studied by is recorded as logic[4].
  • extensionality's JSTOR topic ID is recorded as extensionality[5].
  • extensionality's Microsoft Academic ID is recorded as 150355047[6].
  • extensionality's OpenAlex ID is recorded as C150355047[7].
  • extensionality's FOLDOC ID is recorded as extensionality[8].

Why It Matters

extensionality ranks in the top 2% of general entities by monthly Wikipedia readership (34 views/month).[1] extensionality has Wikipedia articles in 10 language editions, a strong signal of global cultural recognition.[9]

References

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

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . Freebase Data Dumps. wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.
  7. [8] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [9] ↑ . 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). extensionality. Retrieved April 10, 2026, from https://4ort.xyz/entity/extensionality
MLA “extensionality.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/extensionality.
BibTeX @misc{4ortxyz_extensionality_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{extensionality}}, year = {2026}, url = {https://4ort.xyz/entity/extensionality}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): extensionality — https://4ort.xyz/entity/extensionality (retrieved 2026-04-10)

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