Peter Johnstone (mathematician)
Peter Tennant Johnstone (born 1948) is Professor of the Foundations of Mathematics at the University of Cambridge, and a fellow of St. John's College. He invented or developed some ideas in topos theory. His thesis, completed at the University of Cambridge in 1974, was entitled "Some Aspects of Internal Category Theory in an Elementary Topos".
- — "[F]ar too hard to read, and not for the faint-hearted"
- Johnstone, Peter (1982), Stone Spaces, Cambridge University Press, ISBN 978-0-521-33779-3, Zbl 0499.54001.
- Johnstone, Peter (1987), Notes on Logic and Set Theory, Cambridge University Press, ISBN 978-0-521-33692-5.
- Johnstone, Peter (2002), Sketches of an Elephant: A Topos Theory Compendium. I, II, Oxford University Press, ISBN 978-0-19-852496-0, Zbl 1071.18002 (v.3 in preparation)
- "Fellows of St. John's College 2009". Cambridge University Reporter. 2009-10-02.
- "The Mathematics Genealogy Project - Peter Johnstone".
- Hunt, Chris, William McGonagall: Collected Poems, Birlinn, 2006, px
- An anonymous referee, as quoted by Johnstone in his Sketches of an elephant, p. ix.