Jean-Yves Girard

Jean-Yves Girard (born 1947 in Lyon) is a French logician working in proof theory. His contributions include a proof of strong normalization in a system of second-order logic called system F; the invention of linear logic; the geometry of interaction; and ludics. Alumnus of the École normale supérieure de Saint-Cloud, Girard is a research director of CNRS in Marseille and a corresponding member of the French Academy of Sciences.

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  • 1947 (age 62 years)

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Facts from the Community

From the Proofs are Programs base

Contributions:

Key concept Date Why this is interesting Key artifacts
  • 1972
  • Girard showed that the second-order propositional logic can be projected into the second-order polymorphic lambda calculus with quantifiers over type variables.
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