## Section:
Dissemination2>
### Scientific Animation3>
#### Collective responsibilities4>

#### Collective responsibilities4>

Hugo Herbelin coordinated the ADT Coq and the development of Coq.

#### Editorial activities4>

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 committees4>

Pierre-Louis Curien was member of the PC for ICALP 2012.

Pierre-Louis Curien, Yves Guiraud, Philippe Malbos and Alexis Saurin have been members of the organising and scientific committee of the Logic and Interactions weeks held in the CIRM, Marseille, in the first trimester of 2012.

Yann Régis-Gianas served on the PC for the conference “Journees Francophones des Langages Applicatifs” (2013).

Hugo Herbelin was in the PC of the conference ITP 2012 and MFCS 2012. He was in the PC of the TYPES 2011 conference post-proceedings.

Hugo Herbelin organised the “Automation in Proof Assistant” satellite workshop of ETAPS 2012 which was shared with the organisation of the first COST 0901 meeting of year 2012.

Matthieu Sozeau was in the PC of the MSFP'12 (colocated with ETAPS'12) and LFMTP'12 (colocated with ICFP'12) workshops. He was in the PC of the PLPV'12 workshop, colocated with POPL'12, for which he was an external reviewer as well. Matthieu Sozeau is in the PC of JFLA'13.

#### Jury participation4>

In June and July 2012, Alexis Saurin has been member of the Jury for entrance exams at ENS Paris and examined the candidates for the three ENS for the “Informatique Fondamentale” Oral exam.

In September 2012, Alexis Saurin has been member of the Jury for LMFI Master.

#### Invited talks4>

Matthieu Sozeau gave an invited lecture on type classes at JFLA'12 in Carnac (January 2012) and at U. Penn, in October 2012.

Pierre-Louis Curien was invited speaker at the annual meeting of the GDR Topologie et Applications, Lille (“Interprétation catégorique de la théorie des types : questions de cohérence”), in October 2012.

Pierre Letouzey gave an invited talk in the ML workshop in Copenhagen in September 2012, about the interactions between Coq and OCaml.

Alexis Saurin gave an invited talk at the ASL annual meeting held in Madison, Wisconsin, in April 2012 (special session on Structural Proof Theory and Computing).

#### Presentation of papers4>

Matthias Puech has presented his paper [25] at the TLDI 2012 workshop.

Yann Régis-Gianas has presented the paper [21] at the MIPS 2012 workshop (best paper award).

Pierre Boutillier has presented his paper at JFLA 2012.

Hugo Herbelin and Matthieu Sozeau have presented their papers at LICS 2012 in Dubrovnik, Croatia.

Hugo Herbelin has presented his joint paper with Zena Ariola, Paul Downen, Keiko Nakata and Alexis Saurin at FLOPS 2012 in Kobe, Japan.

#### Other presentations4>

Pierre Boutillier gave a talk at Logic and Interaction weeks in February.

Pierre Boutillier gave a talk about compiling Agda style dependent pattern-matching in CIC during AIPA workshop in Tallinn.

Jaime Gaspar gave talks at Colloquium Logicum 2012, Paderborn, in September, and Collegium Logicum 2012: Structural Proof Theory, at École Polytechnique, in November.

Tim Griffin gave the following presentations: “Mathematics of Inter-domain routing", at Internet Engineering Task Force (IETF), Paris, March; “Routing in Equilibrium" for the "Paris Networking Group" (http://www.paris-networking.org/display_event.php?dispID=2221 ), Paris, and at Rencontres Francophones sur les Aspects Algorithmiques des Télécommunications (ALGOTEL) (http://algotel2012.ens-lyon.fr ), Montpellier.

Hugo Herbelin gave a talk on his proof-as-program interpretation of dependent choice in classical logic to the Réalisabilité à Chambéry #5 workshop in June.

Hugo Herbelin gave a talk on his proof with side-effects of Gödel's completeness theorem to the Workshop on Formal and Automated Theorem Proving and Applications (FATPA'12) held at the university of Belgrade.

Pierre-Marie Pédrot gave a presentation at the Logic and Interactions weeks in February, entitled “Double-glueing and orthogonality: refining models of linear logic through realizability”.

#### Talks in seminars4>

Nicolas Ayache gave a talk about the achievements of the CerCo project at the seminar of the ENSTA, at the seminar of the EPITA and at the “GT programmation”.

Pierre-Louis Curien gave a talk “De la logique classique (polarisée) à la logique linéaire (tensorielle)" at the Groupe de Travail Sémantique des calculs classiques, PPS, Paris 7, in November.

Pierre-Louis Curien gave talks on “System L syntax for sequent calculi” at the University of Bath, in February, at the École Polytechnique, in May, and at the Institute of Cybernetics, Tallinn, in December.

Jaime Gaspar gave talks at the Seminar of the Deducteam team, and at the Mathematical Logic Seminar, Lisbon.

Tim Griffin gave the following talks: “Routing in Equilibrium”, University of Rome-3, April; “Routing in Equilibrium with help from ssreflect", Marelle team at École Polytechnique, May; “Mathematics of Routing", DIMACS working group on Abstractions for Network Services, Rutgers University, New Jersey, in May; “Mathematics of Routing", Université d'Évry, in June.

Yves Guiraud gave two talks on “Théorie de Squier et résolutions polygraphiques” at the Groupe de Travail Catégories supérieures, polygraphes et homotopie, PPS, Paris 7, in June.

Hugo Herbelin gave a talk on the formalisation of semi-simplicial sets in type theory at the Univalent Foundations seminar of the Institute for Advanced Study, Princeton, NJ, in December.

Guillaume Munch-Maccagnoni gave a talk about “Runnable monads in models of the calculus” at the ANR Logoi meeting in Luminy, in June.

Guillaume Munch-Maccagnoni gave a talk “On the computational contents of an involutive negation” at the Groupe de Travail Sémantique des calculs classiques, PPS, Paris 7, in November.

Pierre-Marie Pédrot gave a talk on a “Dependent delimited control monad” at the working group of the “Logique de la Programmation” team, from Institut Mathématique de Luminy, in December.

Matthieu Sozeau gave a talk in Tallinn about “Equations: A Dependent Pattern-Matching Suite” in June 2012.

Matthieu Sozeau gave a talk and a tutorial on “Coq with Classes” at the Institute for Advanced Study, Princeton, NJ in October and December 2012.

Matthieu Sozeau gave a talk about “Universe Polymorphism and Inference in Coq” at the Institute for Advanced Study, Princeton, NJ in December 2012.

#### Attendance to conferences, workshops, schools,...4>

Pierre Boutillier attended the Journées Francophones des Langages Applicatifs, Carnac, in February.

Tim Griffin attended the ssreflect/Inria MAP Spring School, Sophia Antipolis, in March.

Hugo Herbelin attended the FATPA workshop at the University of Belgrade in January.

Hugo Herbelin attended the ETAPS 2012 conference and the AIPA workshop in Tallinn in March-April.

Hugo Herbelin attended the FLOPS 2012 conference in Kobe in May.

Hugo Herbelin attended the ITP 2012 conference at Princeton University in August.

Hugo Herbelin attended the Coq workshop 2012 at Princeton University in August.

Guillaume Munch-Maccagnoni attended APLAS, Kyoto, in December.

Matthias Puech attended POPL 2012 in January.

Yann Régis-Gianas attended FMICS 2012, Paris, in August.

Matthieu Sozeau attended the POPL 2012 conference in January.

Matthieu Sozeau attended the JFLA 2012 conference in February.

#### Groupe de travail Théorie des types et réalisabilité4>

This is one of the working groups of PPS, jointly organised by Hugo Herbelin and Paul-André Melliès, since September 2009. It is held weekly. Yves Guiraud took over from Hugo Herbelin for the organisation of the seminar while Hugo was at IAS (October-December).

The web site is http://www.pps.univ-paris-diderot.fr/gdt-types-realisabilite . The programme in 2012 included talks by Pierre-Louis Curien, Arnaud Spiwack, Hugo Herbelin, Matthias Puech, Pierre Boutillier (twice), Federico Aschieri, Jaime Gaspar, Pierre-Marie Pédrot, François Bobot.