Norman Routledge

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Norman Arthur Routledge
Recursive sets
Scientific career
FieldsMathematics
InstitutionsRoyal Aircraft Establishment,
National Physical Laboratory,
King's College, Cambridge,
Eton College
Thesis Recursurive Sets[1]  (1954)

Norman Arthur Routledge (7 March 1928 – 27 April 2013) was a

schoolteacher.[3][4] He was a personal friend of fellow mathematician Alan Turing
(1912–1954).

Life and career

Norman Routledge was born near

Letchworth Grammar School, where he was taught mathematics by George Braithwaite.[3]

In 1946 Routledge matriculated with a scholarship at

recursion theory. It resulted in the papers Ordinal recursion (1953) and Concerning definable sets (1954).[3]

Routledge taught as a scientific officer at the

RAE Farnborough. He went on to the National Physical Laboratory (NPL), Teddington. These were placements to fulfil the requirements for his compulsory national service. At the NPL in 1952 he was able to become an operator of an early version of the Automatic Computing Engine: the Pilot ACE project supported by Harry Huskey's prototype assembler.[4][5]

Returning to academia, Routledge became a research Fellow in mathematics at King's College, Cambridge. He did college undergraduate teaching, and after a time was a director of studies.[4][3] In 1957, he was photographed by Antony Barrington Brown. The photograph is now in the collection of the National Portrait Gallery, London.[6]

In 1959,

Salvation Army community in Bermondsey, southeast London.[4]

Routledge was a raconteur, including on his personal life.[10] In retirement towards the end of his own life, he was able to be more openly gay.[4]

Association with Alan Turing

Routledge was a friend of the mathematician and codebreaker Alan Turing, whom he met after World War II, when Turing was in Cambridge to study physiology.[3] Turing wrote personal letters to Routledge towards the end of his life. After his arrest and before his trial, he sent the following cryptic syllogism to Routledge in 1952:[11][12][13][14]

Turing believes that machines think
Turing lies with men
Therefore machines cannot think

The 1992 documentary programme The Strange Life and Death of Dr Turing had Routledge as one of the interviewees.[15]

Selected publications

  • Routledge, N. A. (1952). "A result in Hilbert space".
    doi:10.1093/qmath/3.1.12
    .
  • Routledge, N. A. (April 1953). "Ordinal recursion".
    S2CID 251094316
    .

References

  1. ^ "N. A. Arthur Routledge". Mathematics Genealogy Project. North Dakota State University. Retrieved 15 April 2020.
  2. ^ Routledge, Norman. "The Eton Headmaster – 'Red' Robert Birley". Web of Stories – Life Stories of Remarkable People. YouTube. Retrieved 15 April 2020.
  3. ^ a b c d e "Norman Arthur Routledge". MacTutor History of Mathematics archive. University of St Andrews. Retrieved 15 April 2020.
  4. ^ a b c d e f g Dalyell, Tam (29 May 2013). "Norman Arthur Routledge: Inspirational teacher and mathematician". The Independent. Archived from the original on 21 June 2022. Retrieved 15 April 2020.
  5. ISBN 978-0-7509-6524-8
    .
  6. ^ "Norman Routledge (1928-2013), Mathematician and teacher at Eton College". UK: National Portrait Gallery, London. Retrieved 15 April 2020.
  7. ^ Wolfram, Stephen (27 August 2019). "A Book from Alan Turing… and a Mysterious Piece of Paper". Stephen Wolfram Writings. Retrieved 15 April 2020.
  8. ^ Crowell, Rachel J. (23 September 2019). "Wolfram Blogging". AMS Blogs. American Mathematical Society. Retrieved 15 April 2020.
  9. ^ Copeland et al., p. 44.
  10. ^ "Norman Routledge (Teacher)". Web of Stories – Life Stories of Remarkable People. YouTube. Retrieved 15 April 2020.
  11. ^ "LGBT History Month in King's Library". King's Treasures – Special Collections of King's College, Cambridge. Library and Archives of King's College, Cambridge. 14 February 2019. Retrieved 15 April 2020.
  12. ^ Turing, Alan (1952). "Letter to Norman Routledge". Genius. Retrieved 15 April 2020.
  13. ^ Leavitt, pp. 5, 269.
  14. ^ Turing, D., pp. 246–7.
  15. ^ "The Strange Life and Death of Dr Turing (1992)". BFI. Archived from the original on 4 July 2020.

Bibliography

External links
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