proof by contradiction

form of proof
Thing general Q184899
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proof by contradiction

Summary

proof by contradiction ranks in the top 2% of general entities by monthly Wikipedia readership (78 views/month).[1]

Key Facts

  • proof by contradiction's subclass of is recorded as mathematical proof[2].
  • proof by contradiction's subclass of is recorded as theorem[3].
  • proof by contradiction's said to be the same as is recorded as reductio ad absurdum[4].
  • proof by contradiction's Freebase ID is recorded as /m/06bwk[5].
  • proof by contradiction's Google Knowledge Graph ID is recorded as /g/121b6yy4[6].
  • proof by contradiction's MathWorld ID is recorded as ProofbyContradiction[7].
  • proof by contradiction's NE.se ID is recorded as reductio-ad-absurdum[8].
  • proof by contradiction's Quora topic ID is recorded as Reductio-ad-Absurdum-1[9].
  • proof by contradiction's JSTOR topic ID is recorded as proof-by-contradiction[10].
  • proof by contradiction's nLab ID is recorded as proof by contradiction[11].
  • proof by contradiction's Internet Encyclopedia of Philosophy ID is recorded as reductio[12].
  • proof by contradiction's maintained by WikiProject is recorded as WikiProject Mathematics[13].
  • proof by contradiction's Microsoft Academic ID is recorded as 185120651[14].
  • proof by contradiction's Brilliant Wiki ID is recorded as contradiction[15].
  • proof by contradiction's ProofWiki ID is recorded as Proof_by_Contradiction[16].
  • proof by contradiction's Australian Educational Vocabulary ID is recorded as scot/13531[17].
  • proof by contradiction's Treccani's Dizionario di Filosofia ID is recorded as ab-absurdo[18].
  • proof by contradiction's Encyclopaedia Herder concept ID is recorded as Reducción_al_absurdo[19].
  • proof by contradiction's Pixiv Encyclopedia ID is recorded as 背理法[20].

Why It Matters

proof by contradiction ranks in the top 2% of general entities by monthly Wikipedia readership (78 views/month).[1] It has Wikipedia articles in 20 language editions, a strong signal of global cultural recognition.[21] It is known by 77 alternative names across languages and contexts.[22]

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.
  5. [6] . wikidata.org.
  6. [7] . wikidata.org.
  7. [8] . wikidata.org.
  8. [9] . Quora. wikidata.org.
  9. [10] . wikidata.org.
  10. [11] . wikidata.org.
  11. [12] . wikidata.org.
  12. [13] . wikidata.org.
  13. [14] . wikidata.org.
  14. [15] . wikidata.org.
  15. [16] . wikidata.org.
  16. [17] . wikidata.org.
  17. [18] . wikidata.org.
  18. [19] . wikidata.org.
  19. [20] . wikidata.org.

Aggregate / graph-position facts

  1. [1] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [21] . Wikidata sitelinks. wikidata.org.
  3. [22] . 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). proof by contradiction. Retrieved April 10, 2026, from https://4ort.xyz/entity/proof-by-contradiction
MLA “proof by contradiction.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/proof-by-contradiction.
BibTeX @misc{4ortxyz_proof-by-contradiction_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{proof by contradiction}}, year = {2026}, url = {https://4ort.xyz/entity/proof-by-contradiction}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): proof by contradiction — https://4ort.xyz/entity/proof-by-contradiction (retrieved 2026-04-10)

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