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 (553 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 was married to Sophia Elizabeth De Morgan[13].
  • A child of Augustus De Morgan was George De Morgan[14].
  • A child of Augustus De Morgan was William De Morgan[15].
  • A child of Augustus De Morgan was Mary De Morgan[16].
  • Augustus De Morgan held citizenship in United Kingdom of Great Britain and Ireland[17].
  • Augustus De Morgan's professions included mathematician[6].
  • Augustus De Morgan worked as a philosopher[7].
  • Augustus De Morgan's professions included university teacher[8].
  • Augustus De Morgan worked as a lawyer[9].
  • Augustus De Morgan's professions included logician[10].
  • Augustus De Morgan's field of work was mathematical logic[18].
  • Augustus De Morgan's field of work was mathematics[19].
  • Augustus De Morgan's field of work was algebra[20].
  • Augustus De Morgan's field of work was probability theory[21].
  • Augustus De Morgan's field of work was algebraic logic[22].
  • Augustus De Morgan's field of work was logic[23].
  • Augustus De Morgan held the position of chairperson[24].
  • Augustus De Morgan was employed by University College London[25].
  • Augustus De Morgan was employed by University College London[26].
  • Augustus De Morgan's education included a stint at Trinity College[27].

Body

Origins and Family

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

Education

Educated at Trinity College[27], a college of the University of Cambridge[28], in United Kingdom[29], founded in 1546[30], headquartered in Cambridge[31] and Lincoln's Inn[32], an Inns of Court[33], in United Kingdom[34], founded in 1444[35]. Doctoral advisors include George Peacock[36], a mathematician[37], 1791–1858[38], of United Kingdom of Great Britain and Ireland[39], awarded the Fellow of the Royal Society[40], specialised in mathematical analysis[41] and William Whewell[42], an economist[43], 1794–1866[44], of United Kingdom of Great Britain and Ireland[45], awarded the Fellow of the Royal Society[46], specialised in geology[47].

Career and Affiliations

Recorded occupations include mathematician[6], philosopher[7], university teacher[8], lawyer[9], and logician[10]. Fields of work include mathematical logic[18], a branch of mathematics[48]; mathematics[19], an academic discipline[49]; algebra[20], a branch of mathematics[50]; probability theory[21], a branch of mathematics[51]; algebraic logic[22], a branch of mathematics[52]; and logic[23], a class used in Universal Decimal Classification[53]. Employers include University College London[25], a university college[54], in United Kingdom[55], founded in 1826[56], headquartered in UCL Main Building[57]. Augustus De Morgan held the position of chairperson[24]. Notable students include Ada Lovelace[58] and Wolfgang Amadeus Mozart[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

Augustus De Morgan was married to Sophia Elizabeth De Morgan[13]. Children include George De Morgan[14], 1841–1867[72]; William De Morgan[15], a novelist[73], 1839–1917[74], of United Kingdom of Great Britain and Ireland[75]; and Mary De Morgan[16], 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]. Burial took place at Kensal Green Cemetery[12].

Why It Matters

Augustus De Morgan ranks in the top 0.71% of human entities by monthly Wikipedia readership (553 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 33 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 was Augustus De Morgan married to?

Augustus De Morgan's spouses include Sophia Elizabeth De Morgan[13].

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[27] and Lincoln's Inn[32].

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] . MacTutor History of Mathematics archive. wikidata.org.
  2. [4] . MacTutor History of Mathematics archive. wikidata.org.
  3. [13] . Oxford Dictionary of National Biography. wikidata.org.
  4. [17] . wikidata.org.
  5. [24] . wikidata.org.
  6. [14] . Oxford Dictionary of National Biography. wikidata.org.
  7. [15] . Oxford Dictionary of National Biography. wikidata.org.
  8. [16] . Oxford Dictionary of National Biography. wikidata.org.
  9. [27] . MacTutor History of Mathematics archive. wikidata.org.
  10. [32] . MacTutor History of Mathematics archive. wikidata.org.
  11. [18] . wikidata.org.
  12. [19] . Czech National Authority Database. Retrieved . wikidata.org.
  13. [20] . Czech National Authority Database. Retrieved . wikidata.org.
  14. [21] . Czech National Authority Database. Retrieved . wikidata.org.
  15. [22] . Czech National Authority Database. Retrieved . wikidata.org.
  16. [23] . Czech National Authority Database. Retrieved . wikidata.org.
  17. [6] . wikidata.org.
  18. [7] . wikidata.org.
  19. [8] . wikidata.org.
  20. [9] . wikidata.org.
  21. [10] . wikidata.org.
  22. [25] . MacTutor History of Mathematics archive. wikidata.org.
  23. [26] . MacTutor History of Mathematics archive. wikidata.org.
  24. [12] . Find a Grave. wikidata.org.
  25. [36] . Mathematics Genealogy Project. wikidata.org.
  26. [42] . Mathematics Genealogy Project. wikidata.org.
  27. [60] . Mathematics Genealogy Project. wikidata.org.
  28. [65] . wikidata.org.
  29. [3] . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  30. [5] . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  31. [66] . wikidata.org.
  32. [67] . wikidata.org.
  33. [68] . wikidata.org.
  34. [58] . wikidata.org.
  35. [59] . Retrieved . 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
  4. [75] . Wikidata. wikidata.org. → on this site
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  7. [78] . Wikidata. wikidata.org. → on this site
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  10. [30] . Wikidata. wikidata.org. → on this site
  11. [31] . Wikidata. wikidata.org. → on this site
  12. [33] . Wikidata. wikidata.org. → on this site
  13. [34] . Wikidata. wikidata.org. → on this site
  14. [35] . Wikidata. wikidata.org. → on this site
  15. [48] . Wikidata. wikidata.org. → on this site
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  17. [50] . Wikidata. wikidata.org. → on this site
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  33. [46] . Wikidata. wikidata.org. → on this site
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  35. [61] . 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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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. 12d ago · Quesotiotyo · 2026-05-20 view diff on Wikidata ↗
    P14397 5509
    "/* wbcreateclaim-create:1| */ [[Property:P14397]]: 5509, [[:toollabs:quickstatements/#/batch/258229|batch #258229]]"
  2. 13d 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)"
  3. 25d 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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