Farkas' lemma

theorem
Intangible theorem Q606254
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Farkas' lemma

Summary

Farkas' lemma is a theorem[1]. It draws 134 Wikipedia views per month (theorem category, ranking #173 of 1,306).[2]

Key Facts

  • Farkas' lemma's image is recorded as Farkas-generalise-wp.jpg[3].
  • Farkas' lemma's instance of is recorded as theorem[4].
  • Gyula Farkas is named after Farkas' lemma[5].
  • Farkas' lemma's has use is recorded as linear programming[6].
  • Farkas' lemma's Freebase ID is recorded as /m/07gy1f[7].
  • Farkas' lemma's defining formula is recorded as \begin{aligned} \forall A \in &\mathbb{R}^{m\times n}, \forall \mathbf{b} \in \mathbb{R}^n, \text{exactly one of the following is true:} \ &\begin{aligned} &\exists \mathbf{x} \in \mathbb{R}^n : \mathbf{Ax} = \mathbf{b} \land \mathbf{x} \geq 0 \ &\exists \mathbf{y} \in \mathbb{R}^{m} : \mathbf{A}^{\top}\mathbf{y} \geq 0 \land \mathbf{b}^{\top} \mathbf{y} < 0 \end{aligned} \end{aligned}[8].
  • Farkas' lemma's maintained by WikiProject is recorded as WikiProject Mathematics[9].
  • Farkas' lemma's Microsoft Academic ID is recorded as 27155235[10].
  • Farkas' lemma's in defining formula is recorded as \land[11].
  • Farkas' lemma's in defining formula is recorded as \mathbb R^n[12].

Why It Matters

Farkas' lemma draws 134 Wikipedia views per month (theorem category, ranking #173 of 1,306).[2] It has Wikipedia articles in 10 language editions, a strong signal of global cultural recognition.[13]

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] . Freebase Data Dumps. wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [13] . 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). Farkas' lemma. Retrieved May 3, 2026, from https://4ort.xyz/entity/farkas-lemma
MLA “Farkas' lemma.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/farkas-lemma.
BibTeX @misc{4ortxyz_farkas-lemma_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Farkas' lemma}}, year = {2026}, url = {https://4ort.xyz/entity/farkas-lemma}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Farkas' lemma — https://4ort.xyz/entity/farkas-lemma (retrieved 2026-05-03)

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