Peter J. Freyd

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Peter J. Freyd

Peter J. Freyd (born February 5, 1936, in Evanston, Illinois)[1] is an American mathematician, a professor at the University of Pennsylvania, known for work in category theory and for founding the False Memory Syndrome Foundation.

Mathematical work[edit]

Freyd is perhaps best known as the author of the foundational book Abelian Categories: An Introduction to the Theory of Functors. This work culminates in a proof of Mitchell's embedding theorem.

In 2012 he became a fellow of the American Mathematical Society.[2]

False Memory Syndrome Foundation[edit]

Freyd and his wife Pamela founded the False Memory Syndrome Foundation in 1992,[3] after Freyd was accused of sexual abuse by his daughter Jennifer.[3][4] Freyd denies the accusations.[5]



  • Peter J. Freyd, Abelian Categories, an Introduction to the Theory of Functors. Harper & Row (1964).[6] Available online.
  • Peter J. Freyd and Andre Scedrov: Categories, Allegories. North-Holland (1999). ISBN 0-444-70368-3.
  • Peter J. Freyd: Path Integrals, Bayesian Vision, and Is Gaussian Quadrature Really Good? Electr. Notes Theor. Comput. Sci. 29: (1999)
  • Peter J. Freyd, Peter W. O'Hearn, A. John Power, Makoto Takeyama, R. Street, Robert D. Tennent: Bireflectivity. Theor. Comput. Sci. 228(1–2): 49–76 (1999)


  1. ^ American Men and Women of Science, Thompson Gale, 2005
  2. ^ List of Fellows of the American Mathematical Society, retrieved 2012-12-29.
  3. ^ a b Diana E. H. Russell. The Secret Trauma: Incest in the Lives of Girls and Women. Basic Books, 1987. xx–xxi.
  4. ^ Freyd, J. (1996) Betrayal Trauma: The Logic of Forgetting Child Abuse. Cambridge, MA: Harvard University Press. The history of the confrontations between the Freyds and their daughter Jennifer is recounted in the Afterword, pages 197–199.
  5. ^ "One family's tragedy spawns national group", The Baltimore Sun, September 12, 1994. Available on the web at Skeptic Files
  6. ^ Linton, F. E. J. (1965). "Review of Abelian categories: an introduction to the theory of functors by Peter Freyd" (PDF). Bull. Amer. Math. Soc. 71 (4): 577–580. 

External links[edit]