Augustus De Morgan

British mathematician and logician (1806–1871)
Person human Q208448
Augustus De Morgan
Sophia Elizabeth De Morgan · Public Domain · Wikimedia
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Augustus De Morgan

Summary

Augustus De Morgan is a human[1]. His place of birth was Madurai[2]. He was born on June 27, 1806[3]. He died in London[4]. He died on March 18, 1871[5]. He worked as a mathematician[6], philosopher[7], university teacher[8], lawyer[9], and logician[10]. He ranks in the top 0.71% of human entities by monthly Wikipedia readership (1,552 views/month, #7,113 of 1,000,298).[11]

Key Facts

  • Augustus De Morgan was born in Madurai[2].
  • Augustus De Morgan died in London[4].
  • Augustus De Morgan was born on June 27, 1806[3].
  • Augustus De Morgan died on March 18, 1871[5].
  • Burial took place at Kensal Green Cemetery[12].
  • Augustus De Morgan's mother was Q141437044[13].
  • Among Augustus De Morgan's spouses was Sophia Elizabeth De Morgan[14].
  • A child of Augustus De Morgan was George De Morgan[15].
  • A child of Augustus De Morgan was William De Morgan[16].
  • A child of Augustus De Morgan was Mary De Morgan[17].
  • Augustus De Morgan held citizenship in United Kingdom of Great Britain and Ireland[18].
  • Augustus De Morgan worked as a mathematician[6].
  • Augustus De Morgan's professions included philosopher[7].
  • Augustus De Morgan worked as a university teacher[8].
  • Augustus De Morgan's professions included lawyer[9].
  • Augustus De Morgan worked as a logician[10].
  • Augustus De Morgan's field of work was mathematical logic[19].
  • Augustus De Morgan's field of work was mathematics[20].
  • Augustus De Morgan's field of work was algebra[21].
  • Augustus De Morgan's field of work was probability theory[22].
  • Augustus De Morgan's field of work was algebraic logic[23].
  • Augustus De Morgan's field of work was logic[24].
  • Augustus De Morgan held the position of chairperson[25].
  • Augustus De Morgan was employed by University College London[26].
  • Among Augustus De Morgan's employers was University College London[27].

Body

Origins and Family

Augustus De Morgan was born in Madurai[2]. He was born on June 27, 1806[3]. His mother was Q141437044[13].

Education

Educated at Trinity College[28], a college of the University of Cambridge[29], in United Kingdom[30], founded in 1546[31], headquartered in Cambridge[32] and Lincoln's Inn[33], an Inns of Court[34], in United Kingdom[35], founded in 1444[36]. Doctoral advisors include George Peacock[37], a mathematician[38], 1791–1858[39], of United Kingdom of Great Britain and Ireland[40], awarded the Fellow of the Royal Society[41], specialised in mathematical analysis[42] and William Whewell[43], an economist[44], 1794–1866[45], of United Kingdom of Great Britain and Ireland[46], awarded the Fellow of the Royal Society[47], specialised in geology[48].

Career and Affiliations

Recorded occupations include mathematician[6], philosopher[7], university teacher[8], lawyer[9], and logician[10]. Fields of work include mathematical logic[19], a branch of mathematics[49]; mathematics[20], an academic discipline[50]; algebra[21], a branch of mathematics[51]; probability theory[22], a branch of mathematics[52]; algebraic logic[23], a branch of mathematics[53]; and logic[24], a class used in Universal Decimal Classification[54]. Employers include University College London[26], a university college[55], in United Kingdom[56], founded in 1826[57], headquartered in UCL Main Building[58]. Augustus De Morgan held the position of chairperson[25]. A notable student of him was Ada Lovelace[59]. Doctoral students include Edward Routh[60], a mathematician[61], 1831–1907[62], of United Kingdom of Great Britain and Ireland[63], awarded the Fellow of the Royal Society[64] and Renoir[65].

Works and Contributions

Notable works include A Budget of Paradoxes[66], Formal Logic; or, the Calculus of Inference, Necessary and Probable[67], and De Morgan's laws[68]. Things named for Augustus De Morgan include De Morgan's laws[69], De Morgan Medal[70], and De Morgan[71].

Personal Life

Among Augustus De Morgan's spouses was Sophia Elizabeth De Morgan[14]. Children include George De Morgan[15], 1841–1867[72]; William De Morgan[16], a novelist[73], 1839–1917[74], of United Kingdom of Great Britain and Ireland[75]; and Mary De Morgan[17], a writer[76], 1850–1907[77], of United Kingdom of Great Britain and Ireland[78].

Death and Burial

Augustus De Morgan died on March 18, 1871[5]. He passed away in London[4]. He is buried at Kensal Green Cemetery[12].

Why It Matters

Augustus De Morgan ranks in the top 0.71% of human entities by monthly Wikipedia readership (1,552 views/month, #7,113 of 1,000,298).[11] He has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[79] He is known by 45 alternative names across languages and contexts.[80]

He has been cited as an influence by Bertrand Russell[81], a mathematician[82], 1872–1970[83], of United Kingdom[84], awarded the Nobel Prize in Literature[85], specialised in set theory[86]; Thomas Corwin Mendenhall[87], a physicist[88], 1841–1924[89], of United States[90], awarded the Cullum Geographical Medal[91]; and Isaac Todhunter[92], a mathematician[93], 1820–1884[94], of United Kingdom of Great Britain and Ireland[95], awarded the Fellow of the Royal Society[96], specialised in mathematics[97].

Entities named for him include De Morgan's laws[69], De Morgan Medal[70], and De Morgan[71].

His notable doctoral advisees include Edward Routh[98], a mathematician[99], 1831–1907[100], of United Kingdom of Great Britain and Ireland[101], awarded the Fellow of the Royal Society[102].

FAQs

Where was Augustus De Morgan born?

Augustus De Morgan was born in Madurai[2].

Where did Augustus De Morgan die?

Augustus De Morgan passed away in London[4].

Who were Augustus De Morgan's parents?

Augustus De Morgan's mother was Q141437044[13].

Who was Augustus De Morgan married to?

Augustus De Morgan's spouses include Sophia Elizabeth De Morgan[14].

What did Augustus De Morgan do for work?

Augustus De Morgan worked as mathematician[6], philosopher[7], university teacher[8], lawyer[9], and logician[10].

Where did Augustus De Morgan go to school?

Augustus De Morgan was educated at Trinity College[28] and Lincoln's Inn[33].

Who did Augustus De Morgan influence?

Augustus De Morgan has been cited as an influence by Bertrand Russell[81], Thomas Corwin Mendenhall[87], and Isaac Todhunter[92].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [4] . wikidata.org.
  3. [13] . wikidata.org.
  4. [14] . wikidata.org.
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  11. [33] . wikidata.org.
  12. [19] . wikidata.org.
  13. [20] . wikidata.org.
  14. [21] . wikidata.org.
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  21. [9] . wikidata.org.
  22. [10] . wikidata.org.
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  24. [27] . wikidata.org.
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  29. [65] . wikidata.org.
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  32. [66] . wikidata.org.
  33. [67] . wikidata.org.
  34. [68] . wikidata.org.
  35. [59] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [81] . wikidata.org. → on this site
  2. [87] . wikidata.org. → on this site
  3. [92] . wikidata.org. → on this site
  4. [98] . wikidata.org. → on this site
  5. [69] . wikidata.org. → on this site
  6. [70] . wikidata.org. → on this site
  7. [71] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [72] . Wikidata. wikidata.org. → on this site
  2. [73] . Wikidata. wikidata.org. → on this site
  3. [74] . Wikidata. wikidata.org. → on this site
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  20. [54] . Wikidata. wikidata.org. → on this site
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  56. [102] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [11] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [79] . Wikidata sitelinks. wikidata.org.
  3. [80] . Wikidata aliases. wikidata.org.

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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). Augustus De Morgan. Retrieved April 10, 2026, from https://4ort.xyz/entity/augustus-de-morgan
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BibTeX @misc{4ortxyz_augustus-de-morgan_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Augustus De Morgan}}, year = {2026}, url = {https://4ort.xyz/entity/augustus-de-morgan}, note = {Accessed: 2026-04-10}}
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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. 8d ago · GZWDer · 2026-09-12 view diff on Wikidata ↗
    Harper's tag augustus-de-morgan
    Mother Q141437044
    "/* wbsetclaim-create:2||1 */ [[Property:P25]]: [[Q141437044]], semi-automatic Geni import"
  2. 15w ago · ~2026-33151-42 · 2026-06-03 view diff on Wikidata ↗
    Student Ada Lovelace
    "/* wbremoveclaims-remove:1| */ [[Property:P802]]: [[Q254]]"
  3. 17w ago · Quesotiotyo · 2026-05-20 view diff on Wikidata ↗
    P14397 5509
    "/* wbcreateclaim-create:1| */ [[Property:P14397]]: 5509, [[:toollabs:quickstatements/#/batch/258229|batch #258229]]"
  4. 17w ago · Epìdosis · 2026-05-19 view diff on Wikidata ↗
    Local thumb
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32080|batch #32080]]: import P21 and P106 from GND (22)"
  5. 19w ago · Bargioni · 2026-05-07 view diff on Wikidata ↗
    Spouse Sophia Elizabeth De Morgan
    Doctoral student Edward Routh, Renoir
    Work location London, Cambridge
    Employer
    + 35 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/30465|batch #30465]]: add P1810 to P5739 1/3"
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