Jean-Yves Girard

Short description: French logician

Jean-Yves Girard

Born| 1947 (age 78-79)

Lyon, France

Nationality| French
Alma mater| École normale supérieure de Saint-Cloud
Paris Diderot University
Known for| Girard's paradox
Coherent space
Geometry of interaction
Linear logic
Ludics
Proof net
System F
Awards| Poncelet Prize (1990)
CNRS Silver Medal (1983)
Scientific career
Fields| Logic
Institutions| CNRS
Doctoral advisor| Jean-Louis Krivine (fr)

Jean-Yves Girard (French: [ʒiʁaʁ]; born 1947) is a French logician working in proof theory. He is a research director (emeritus) at the mathematical institute of University of Aix-Marseille, at Luminy.

## Contents

* 1 Biography
* 2 Bibliography
* 3 See also
* 4 References
* 5 External links

## Biography

Jean-Yves Girard is an alumnus of the École normale supérieure de Saint-Cloud.

He made a name for himself in the 1970s with his proof of strong normalization in a system of second-order logic called System F. This result gave a new proof of Takeuti's conjecture, which was proven a few years earlier by William W. Tait, Motō Takahashi and Dag Prawitz. For this purpose, he introduced the notion of "reducibility candidate" ("candidat de réducibilité"). He is also credited with the discovery of Girard's paradox, linear logic, the geometry of interaction, ludics, and (satirically) the mustard watch.[1]

He obtained the CNRS Silver Medal in 1983 and is a member of the French Academy of Sciences.

## Bibliography

* Ernest Nagel; James R. Newman; Kurt Gödel; Jean-Yves Girard (1989). Le théorème de Gödel. Éditions du Seuil.
* Jean-Yves Girard; P. Taylor; Yves Lafont (1989). Proofs and Types. Cambridge University Press. https://archive.org/details/proofstypes0000gira.
* Jean-Yves Girard (2007). Le Point Aveugle, Cours de Logique. Hermann.
* Jean-Yves Girard (2011). The Blind Spot: Lectures on Logic[2]
* Jean-Yves Girard (2016). Le fantôme de la transparence. Éditions Allia.

## See also

* Affine logic

## References

1. ↑ Ringard, Yann-Joachim (1990). "Mustard watches: an integrated approach to time and food.". http://girard.perso.math.cnrs.fr/mustard/article.html. Retrieved 27 May 2018.
2. ↑ Girard, Jean-Yves (2011). The blind spot : lectures on logic. Zürich, Switzerland: European Mathematical Society. ISBN 978-3-03719-088-3. OCLC 757486610. https://www.worldcat.org/oclc/757486610.

## External links

* Jean-Yves Girard at the Mathematics Genealogy Project
* {{DBLP}} template missing ID and not present in Wikidata.
* Journées Jean-Yves Girard web site of 2007 conference in honour of Girard's 60th birthday

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Jean-Yves Girard. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Biography:Jean-Yves_Girard&oldid=934052"