John Venn

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John Venn
John Venn.jpg
Born (1834-08-04)4 August 1834
Kingston upon Hull, Yorkshire, England
Died 4 April 1923(1923-04-04) (aged 88)
Cambridge, England
Nationality English
Fields Mathematics
Logic[1]
Philosophy
Institutions University of Cambridge
Alma mater University of Cambridge
Notable awards Fellow of the Royal Society
Signature

John Venn, FRS,[2][3] FSA[4] (4 August 1834 – 4 April 1923) was an English logician and philosopher noted for introducing the Venn diagram, used in the fields of set theory, probability, logic, statistics, and computer science.

The Venn Building, University of Hull
Stained glass window at Gonville and Caius College, Cambridge, commemorating Venn and the Venn diagram

Life and career[edit]

John Venn was born on 4 August 1834 in Kingston upon Hull, Yorkshire to Martha Sykes and Rev. Henry Venn, who was the rector of the parish of Drypool. His mother died when he was three years old.[5] Venn was descended from a long line of church evangelicals, including his grandfather John Venn.[6]

He began his education in London joining Sir Roger Cholmeley's School,[7] now known as Highgate School, with his brother Henry in September 1846. He moved on to Islington proprietary school and in October 1853 he went to Gonville and Caius College, Cambridge.[4][8] In 1857, he obtained his degree in mathematics and became a fellow. In 1903 he was elected President of the College, a post he held until his death.[8] He would follow his family vocation and become an Anglican priest, ordained in 1859, serving first at the church in Cheshunt, Hertfordshire, and later in Mortlake, Surrey.[9]

In 1862, he returned to Cambridge University as a lecturer in moral science, studying and teaching logic and probability theory, and, beginning around 1869, giving intercollegiate lectures. These duties led to his use of the diagram that would eventually bear his name.

I began at once somewhat more steady work on the subjects and books which I should have to lecture on. I now first hit upon the diagrammatical device of representing propositions by inclusive and exclusive circles. Of course the device was not new then, but it was so obviously representative of the way in which any one, who approached the subject from the mathematical side, would attempt to visualise propositions, that it was forced upon me almost at once.

—John Venn[10]

In 1868, he married Susanna Carnegie Edmonstone with whom he had one son, John Archibald Venn.

In 1883, he resigned from the clergy, having concluded that Anglicanism was incompatible with his philosophical beliefs.[8] In that same year, Venn was elected a Fellow of the Royal Society and was awarded a Sc.D. by Cambridge.

He died on 4 April 1923.

Memorials[edit]

Publications[edit]

Venn compiled Alumni Cantabrigienses, a biographical register of former members of the University of Cambridge.[12] This work is still being updated online, see #External links, below. His other works include:

Notes[edit]

References[edit]

  • Anon (October 2003). "Venn biography". School of Mathematics and Statistics University of St Andrews, Scotland. Retrieved 3 August 2014. 
  • Edwards, A. W. F. (2004). Cogwheels of the Mind: The Story of Venn Diagrams. JHU. p. 3. ISBN 9780801874345. 
  • John R. Gibbins, ‘Venn, John (1834–1923)’, Oxford Dictionary of National Biography, Oxford University Press, 2004; online edn, May 2006 The Oxford Dictionary of National Biography. 2004. doi:10.1093/ref:odnb/36639.  edit
  • Soylent Communications (2014). "John Venn". Retrieved 3 August 2014. 
  • Venn, J. (1880). "I.On the diagrammatic and mechanical representation of propositions and reasonings". Philosophical Magazine Series 5 10 (59): 1–18. doi:10.1080/14786448008626877.  edit

External links[edit]