The chair Biography and publications Public lectures Guest lecturers Annual summaries Audios and videos News Upcoming Previous Program Equivalencies (1) Xavier Leroy Lecture 5 Nov 2026 09:30 to 11:00 Concurrency Theory: From Its Origins Toward a Science of Processes Davide Sangiorgi Seminar 5 Nov 2026 11:15 to 12:15 Denotational Approaches and Full Abstraction Xavier Leroy Lecture 12 Nov 2026 09:30 to 11:00 Interaction Equivalence Adrienne Lancelot Seminar 12 Nov 2026 11:15 to 12:15 Bisimulations 1 Xavier Leroy Lecture 19 Nov 2026 09:30 to 11:00 Semantics of Programming Language Games Pierre Clairambault Seminar 19 Nov 2026 11:15 to 12:15 Bisimulations 2 Xavier Leroy Lecture 26 Nov 2026 09:30 to 11:00 Fixed-Point Theorems and Coinduction Without Coinduction Damien Pous Seminar 26 Nov 2026 11:15 to 12:15 Program Equivalencies (5) Xavier Leroy Lecture 3 Dec 2026 09:30 to 11:00 Probabilistic Relational Logic and Its Applications to Cryptography Benjamin Grégoire Seminar 3 Dec 2026 11:15 to 12:15 Program Equivalencies (6) Xavier Leroy Lecture 10 Dec 2026 09:30 to 11:00 The Semantics of Dynamic Allocation: From Fresh Names to Bundles Guilhème Jaber Seminar 10 Dec 2026 11:15 to 12:15 Relational Program Logic Xavier Leroy Lecture 17 Dec 2026 09:30 to 11:00 Program Equivalencies (7) Xavier Leroy Seminar 17 Dec 2026 11:15 to 12:15 Next 8 series Filters Event type Event type Lecture (3) Seminar (3) Symposium (1) Opening lecture (1) Academic year Academic year 2026 - 2027 (2) 2025 - 2026 (2) 2024 - 2025 (1) 2023 - 2024 (3) (-) 2022 - 2023 (2) (-) 2021 - 2022 (3) 2020 - 2021 (2) 2019 - 2020 (2) (-) 2018 - 2019 (3) Active filters 2022 - 2023 2021 - 2022 2018 - 2019 2022 - 2023 Persistent data structures Xavier Leroy 09 Mar 2023 → 20 Apr 2023 Lecture 09 Mar 2023 → 20 Apr 2023 Persistent data structures Xavier Leroy 23 Mar 2023 → 20 Apr 2023 Seminar 23 Mar 2023 → 20 Apr 2023 2021 - 2022 Software security : what role can programming languages play? Xavier Leroy 10 Mar 2022 → 21 Apr 2022 Lecture 10 Mar 2022 → 21 Apr 2022 Software security : what role can programming languages play? Xavier Leroy 17 Mar 2022 → 21 Apr 2022 Seminar 17 Mar 2022 → 21 Apr 2022 Probabilistic Programming Xavier Leroy 29 Jun 2022 → 30 Jun 2022 Symposium 29 Jun 2022 → 30 Jun 2022 2018 - 2019 Software, between mind and matter Xavier Leroy 15 Nov 2018 18:00 - 19:00 Opening lecture Marguerite-de-Navarre Amphitheater, Marcelin-Berthelot Site 15 Nov 2018 18:00 - 19:00 Program = demonstrate ? Curry-Howard correspondence today Xavier Leroy 21 Nov 2018 → 30 Jan 2019 Lecture 21 Nov 2018 → 30 Jan 2019 Program = demonstrate ? Curry-Howard correspondence today Xavier Leroy 28 Nov 2018 → 30 Jan 2019 Seminar 28 Nov 2018 → 30 Jan 2019