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Tychonoff plank

topological space that is used in mathematics as a counterexample to several plausible-sounding conjectures
Intangible mathematical_concept Q250509
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Tychonoff plank

Summary

Tychonoff plank is a mathematical concept[1]. It draws 21 Wikipedia views per month (mathematical_concept category, ranking #239 of 1,007).[2]

Key Facts

  • Tychonoff plank's instance of is recorded as mathematical concept[3].
  • Tychonoff plank's subclass of is recorded as topological space[4].
  • Tychonoff plank's Freebase ID is recorded as /m/02wwypn[5].
  • Tychonoff plank's MathWorld ID is recorded as TychonoffPlank[6].
  • Tychonoff plank's maintained by WikiProject is recorded as WikiProject Mathematics[7].
  • Tychonoff plank's Microsoft Academic ID is recorded as 2776695625[8].

Why It Matters

Tychonoff plank draws 21 Wikipedia views per month (mathematical_concept category, ranking #239 of 1,007).[2] It has Wikipedia articles in 6 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. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . Freebase Data Dumps. wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . 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). Tychonoff plank. Retrieved May 3, 2026, from https://4ort.xyz/entity/tychonoff-plank
MLA “Tychonoff plank.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/tychonoff-plank.
BibTeX @misc{4ortxyz_tychonoff-plank_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Tychonoff plank}}, year = {2026}, url = {https://4ort.xyz/entity/tychonoff-plank}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Tychonoff plank — https://4ort.xyz/entity/tychonoff-plank (retrieved 2026-05-03)

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