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reductio ad absurdum

form of argument in informal logic
Thing type Q14402006
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Summary

reductio ad absurdum is a type[1]. It draws 6,955 Wikipedia views per month (type category, ranking #1 of 8).[2]

Key Facts

  • reductio ad absurdum's instance of is recorded as type[3].
  • reductio ad absurdum is a type of argument[4].
  • reductio ad absurdum's said to be the same as is recorded as proof by contradiction[5].
  • reductio ad absurdum's has cause is recorded as law of noncontradiction[6].
  • reductio ad absurdum's described at URL is recorded as https://www.logicallyfallacious.com/logicalfallacies/Reductio-ad-Absurdum[7].
  • reductio ad absurdum's described by source is recorded as Brockhaus and Efron Encyclopedic Dictionary[8].
  • reductio ad absurdum's described by source is recorded as Brockhaus and Efron Encyclopedic Dictionary[9].
  • reductio ad absurdum's described by source is recorded as Lean Logic[10].
  • reductio ad absurdum's described by source is recorded as Mathwords[11].
  • reductio ad absurdum's maintained by WikiProject is recorded as WikiProject Mathematics[12].

Body

Definition and Type

reductio ad absurdum's instance of is recorded as type[3]. It is a type of argument[4].

Why It Matters

reductio ad absurdum draws 6,955 Wikipedia views per month (type category, ranking #1 of 8).[2] It has Wikipedia articles in 20 language editions, a strong signal of global cultural recognition.[13] It is known by 24 alternative names across languages and contexts.[14]

Related Entities

Lean Logic

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] ↑ . 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.
  3. [14] ↑ . 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). reductio ad absurdum. Retrieved October 10, 2026, from https://4ort.xyz/entity/reductio-ad-absurdum
MLA “reductio ad absurdum.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Oct. 2026, https://4ort.xyz/entity/reductio-ad-absurdum.
BibTeX @misc{4ortxyz_reductio-ad-absurdum_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{reductio ad absurdum}}, year = {2026}, url = {https://4ort.xyz/entity/reductio-ad-absurdum}, note = {Accessed: 2026-10-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): reductio ad absurdum — https://4ort.xyz/entity/reductio-ad-absurdum (retrieved 2026-10-10)

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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. 26d ago · AddyLockPool · 2026-09-17 view diff on Wikidata ↗
    Maintained by wikiproject → WikiProject Mathematics
    Said to be the same as → proof by contradiction
    Instance of → type
    Subclass of → —
    + 5 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ Described by source: Mathwords"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.