blackboard bold

typeface, used in mathematics, that doubles certain lines of the symbol
Place typeface Q1142171
blackboard bold
Bryan Derksen, conversion of public domain png created by en:User:Deco · Public Domain · Wikimedia
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blackboard bold

Summary

blackboard bold is a typeface[1]. It ranks in the top 2% of typeface entities by monthly Wikipedia readership (368 views/month).[2]

Key Facts

  • blackboard bold's image is recorded as Blackboard bold.svg[3].
  • blackboard bold's image is recorded as Blackboard gras.svg[4].
  • blackboard bold's instance of is recorded as typeface[5].
  • blackboard bold's part of is recorded as mathematical notation[6].
  • blackboard bold's Commons category is recorded as Double-struck letters[7].
  • blackboard bold's country of origin is recorded as France[8].
  • blackboard bold's time of discovery or invention is recorded as +1950-00-00T00:00:00Z[9].
  • blackboard bold's Freebase ID is recorded as /m/0b14l[10].
  • blackboard bold's TeX string is recorded as \mathbb[11].
  • blackboard bold's MathWorld ID is recorded as Doublestruck[12].
  • blackboard bold's maintained by WikiProject is recorded as WikiProject Mathematics[13].
  • blackboard bold's Microsoft Academic ID is recorded as 76072679[14].
  • blackboard bold's ProofWiki ID is recorded as Symbols:Fonts/mathbb[15].
  • blackboard bold's NicoNicoPedia ID is recorded as 黒板太字[16].
  • blackboard bold's Namuwiki ID is recorded as 칠판체[17].

Body

Geography

blackboard bold's part of is recorded as mathematical notation[6].

Designation and Status

blackboard bold's instance of is recorded as typeface[5].

Why It Matters

blackboard bold ranks in the top 2% of typeface entities by monthly Wikipedia readership (368 views/month).[2] It has Wikipedia articles in 10 language editions, a strong signal of global cultural recognition.[18] It is known by 15 alternative names across languages and contexts.[19]

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] . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . archive.org. archive.org. Provenance: wikidata.org.
  7. [9] . archive.org. archive.org. Provenance: wikidata.org.
  8. [10] . Freebase Data Dumps. wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [18] . Wikidata sitelinks. wikidata.org.
  3. [19] . 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). blackboard bold. Retrieved May 3, 2026, from https://4ort.xyz/entity/blackboard-bold
MLA “blackboard bold.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/blackboard-bold.
BibTeX @misc{4ortxyz_blackboard-bold_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{blackboard bold}}, year = {2026}, url = {https://4ort.xyz/entity/blackboard-bold}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): blackboard bold — https://4ort.xyz/entity/blackboard-bold (retrieved 2026-05-03)

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