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Horn clause

clause (a disjunction of literals) with at most one positive, i.e. unnegated, literal
Thing general Q933932
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Horn clause

Summary

Horn clause ranks in the top 2% of general entities by monthly Wikipedia readership (442 views/month).[1]

Key Facts

  • Alfred Horn is named after Horn clause[2].
  • Horn clause is a type of clause[3].
  • Horn clause's studied by is recorded as Boolean algebra[4].
  • Horn clause's maintained by WikiProject is recorded as WikiProject Mathematics[5].

Body

Definition and Type

Horn clause is a type of clause[3].

Origins

Alfred Horn is named after Horn clause[2].

Why It Matters

Horn clause ranks in the top 2% of general entities by monthly Wikipedia readership (442 views/month).[1] It has Wikipedia articles in 17 language editions, a strong signal of global cultural recognition.[6] It is known by 14 alternative names across languages and contexts.[7]

Related Entities

Alfred Horn

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.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [6] ↑ . Wikidata sitelinks. wikidata.org.
  3. [7] ↑ . 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). Horn clause. Retrieved April 10, 2026, from https://4ort.xyz/entity/horn-clause
MLA “Horn clause.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/horn-clause.
BibTeX @misc{4ortxyz_horn-clause_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Horn clause}}, year = {2026}, url = {https://4ort.xyz/entity/horn-clause}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Horn clause — https://4ort.xyz/entity/horn-clause (retrieved 2026-04-10)

Canonical URL: https://4ort.xyz/entity/horn-clause · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 6d ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 3fU5CG
    Named after → —
    Studied by → Boolean algebra
    Named after → Alfred Horn
    + 4 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.