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Scientific Animation

Collective responsibilities

Pierre-Louis Curien is member of the Conseil Scientifique of the INSII (CNRS). He is also a member of the Conseil Scientifique of CIRM (since June 2013).

Editorial activities

Pierre-Louis Curien is co-editor in chief of Mathematical Structures in Computer Science, and is an editor of Higher-Order and Symbolic Computation.

Program committees and organising committees

Alexis Saurin has been co-chair of the program committee and editor of the proceedings of the workshop Control Operators and their Semantics (COS'13, organized at RDP 2013, http://cos2013.di.unito.it and http://rvg.web.cse.unsw.edu.au/eptcs/content.cgi?COS2013 ). The proceedings were published by EPTCS.

Alexis Saurin has been a member of the scientific committee of the Summer School Linear Logic and Geometry of Interaction (http://www.logoi.fr/events/school ) which took place in Torino as a satellite event of CSL 2013.

Alexis Saurin is a PC member of GaLoP 2014 (International Workshop on Games and Logic for Programming) which will take place during ETAPS 2014 in Grenoble.

Hugo Herbelin, Pierre Letouzey and Matthieu Sozeau are co-organizing and co-chairing the TYPES'14 conference in Paris in May.

Matthieu Sozeau was in the PC of DTP'13, JFLA'13 and JFLA'14. He is in the newly formed steering committee of the DTP workshop https://www.pps.univ-paris-diderot.fr/dtp/ .

Matthieu Sozeau co-organized a (private) meeting at POPL'14 in San Diego, there were 30 participants. He gave a talk on the upcoming 8.5 version of Coq and a tutorial.

Hugo Herbelin organized with Gyesik Lee a workshop on constructive reverse mathematics in Seoul, March 2013.

Yves Guiraud and Philippe Malbos are organisers of the 5-weeks programme Mathematical Structures of Computation, held in Lyon in January-February 2014, and supported by the Labex MILYON. They are also organisers of the second week, Algebra and Computation, while Pierre-Louis Curien and Hugo Herbelin organised the first week, Recent Trends in Type theory.

Pierre-Louis Curien, Hugo Herbelin and Paul-André Melliès are the organisers of the IHP trimester Semantics of proofs and certified mathematics, to be held next spring. They also organise a spring school at CIRM preceding the trimester.

Pierre-Louis Curien is member of the steering committee of the conferences Typed Lambda Calculi (TLCA) and Applications and of the international workshops Games for Logic and Programming Languages (GaLop).

Jury participation

Alexis Saurin was an examinor for the computer science oral at the entrance exam for Ecoles normales supérieures and a member of the jury for Ecole normale supérieure de la rue d'Ulm.

Alexis Saurin has been member of the Jury for LMFI Master.

Invited talks

Hugo Herbelin gave an invited talk on proving Gödel's completeness theorem with side-effects at the conference TLCA'13 in Eindhoven.

Philippe Malbos was invited speaker at the Sao Paulo - Lyon Algebra meeting, in October 2013.

Pierre-Louis Curien was an invited speaker at Glynn Winskel's anniversary workshop in Cambridge (where he presented his joint work with Garner and Hofmann on coherence issues in type theory), at the workshop Higher structures in China (Lanzhou, August), where he presented homotopical completions and reductions, at the International Symposium on Domain Theory, where he presented Thomas Ehrhard's result “Scott is the extensional collapse of Rel”, and at the Loday's Mathematical Legacy conference in Strasbourg as well as at the Algebra and Computation workshop in Lyon where he presented his work on languages for operads and related structures.

Presentation of papers

Philippe Malbos has presented [16] at RTA 2013.

Lourdes González presented [14] at TYPES 2013.

Yann Régis-Gianas presented [14] at ITP 2013.

Other presentations

Yves Guiraud gave a talk on “Coherent presentations of Artin monoids” during the Journées PPS in September 2013.

Pierre Boutillier gave a talk on “An abstract machine to conceal strong reduction and fixpoints” during the journées PPS.

Yann Régis-Gianas presented the CerCo european project at two satellite workshops of HIPEAC (Berlin) in March 2013 and ETAPS (Roma) in April 2013.

Hugo Herbelin gave two lectures on reducibility candidates and their relation with completeness proofs to the Réalisabilité à Chambéry #6 workshop in June.

Hugo Herbelin gave a talk on the development of Coq at the Coq workshop '13 in Rennes.

Hugo Herbelin gave a talk at FOMCAF 2013 in Padova on the status of equality in type theory.

Hugo Herbelin gave a talk at TYPES 2013 in Toulouse on the status of equality in type theory.

Hugo Herbelin gave a talk at PCC 2013 in Toulouse on the Computational interpretation for the big five systems of reverse mathematics (joint work with Gyesik Lee and Keiko Nakata).

Matthieu Sozeau gave a talk at TYPES 2013 in Toulouse on universe polymorphism.

Matthieu Sozeau gave a talk at the TYPEX meeting in Paris on universe polymorphism.

Ludovic Patey gave a talk on Probabilistic Algorithms and Ramsey-Type Principles in Reverse Mathematics at the Workshop in Type Theory, in Séoul, on Rainbow Ramsey theorem for pairs at Computability in Europe, Milano, and on Classifying principles by the no randomized algorithm property at Logic Colloquium, Évora.

Jaime Gaspar gave a talk on Krivine's classical realisability and the unprovability of the axiom of choice and the continuum hypothesis at the 6th Young Set Theory Workshop 2013, Oropa, Italy. He gave a talk on “Refuting” Cantor at the Logic Colloquium 2013, Évora, Portugal.

Talks in seminars

Yves Guiraud gave three talks on “Coherent presentations of Artin monoids” at the Groupe de Travail Catégories supérieures, polygraphes et homotopie, PPS, Paris 7, in May-June 2013.

Matthieu Sozeau gave a talk on universe polymorphism at the Coq working group in Paris.

Alexis Saurin gave a talk at "Journées PPS" in september 2013 on linear head reduction and call-by-need, entitled "Éloge de la paresse".

Guillaume Claret gave a talk at Gallium on the Cybele plugin to do proofs by reflection in Coq using the extraction mechanism.

Guillaume Munch-Maccagnoni gave a talk on duploids at the PPS days in September 2013.

Zena Ariola presented a talk on Call-by-need: reduction, continuation passing style and abstract machines at Paris 7 University, 20 December 2012, and at Inria Saclay, 27 February 2013.

Jaime Gaspar gave a talk on Formalising ZF ZF ε in Paris, and at the Mathematical Logic Seminar, Lisbon. He gave a talk on Proof interpretations: what they are and what they are good for, at Junior Seminar, Rocquencourt, and at Parsifal team seminar, Palaiseau. He gave a talk on Krivine's classical realizability (see also above) at Technical University of Darmstadt, Darmstadt, and at University of Applied Sciences, Wiesbaden.

Attendance to conferences, workshops, schools,...

Yves Guiraud and Philippe Malbos attended RTA 2013, Eindhoven, in June.

Pierre Boutillier, Alexis Saurin and Pierre-Marie Pédrot attended the JFLA 2013 conference in Aussois.

Pierre Boutillier and Lourdes González attended the Coq workshop 2013 in Rennes.

Pierre Boutillier attended ICFP and DTP 2013 in Boston.

Lourdes González attended the Workshop on Formal Meta-Theory organized by the Parsifal team (Lix and Inria) the 5-6th March 2013.

Lourdes González, Guillaume Claret and Pierre-Marie Pédrot attended TYPES 2013 in Toulouse.

Yann Régis-Gianas, Guillaume Claret and Lourdes González attended ITP 2013 in Rennes.

Lourdes González and Pierre-Marie Pédrot attended the Summer School on Linear Logic and Geometry of Interaction in Turin.

Lourdes González attended CSL 2013 and its satellite events in Turin.

Pierre Letouzey attended the Coq workshop 2013 in Rennes.

Matthieu Sozeau attended the JFLA'13 in Aussois.

Matthieu Sozeau attended the Coq workshop 2013 and ITP 2013 in Rennes.

Matthieu Sozeau attended the TYPES 2013 conference in Toulouse.

Matthieu Sozeau attended the POPL'14 conference in San Diego.

Pierre Letouzey, Matthieu Sozeau, Lourdes González, Gullaume Munch and Pierre-Marie Pédrot attended Pierre-Louis Curien's 60th birthday meeting in Venice.

Matthieu Sozeau attended the Conference on Type Theory, Homotopy Theory and Univalent Foundations at the Centre de Recerca Matemàtica in Barcelona.

Guillaume Claret attended the EJCP 2013 school at Saint-Malo and Rennes.

Alexis Saurin attended BLL, a workshop on Bounded Linear Logic, in November 2013.

Zena Ariola attended POPL 2013, Rome.

Jaime Gaspar attended Proof Theory in Lisbon (a one-day workshop), and a workshop on Reverse Mathematics in Paris.

Groupe de travail Théorie des types et réalisabilité

Pierre-Marie Pédrot gave a talk on a classical realizability account of the Dialectica transformation, as well as a dependent version of it, in November.

Matthieu Sozeau gave a talk on a groupoid interpretation in March.

This year's other internal speakers were Hugo Herbelin, Philippe Malbos, and the external speakers were Maribel Fernández (King's College, London), Gregory Malecha (MIT), Marc Lasson (then postdoc at Cambridge Univ.), Keiko Nakata (Institute of Cybernetics, Tallinn), Cyril Cohen (Univ. of Göteborg), Eduardo Bonelli (Universidad Nacional de Quilmes), Barbara Petit (Sardes team, Inria Grenoble), Lionel Rieg (ENS Lyon), Fernando Ferreira (Univ. of Lisbonne), Chantal Keller (Univ. of Aarhus), Matthias Puech (Univ. of Aarhus), Dominic Hughes (Stanford University), Thomas Braibant (Gallium team), and Alexander Kreuzer (ENS Lyon).