* Invited talks: Andrej Bauer, Gilles Barthe, Peter Selinger * Tutorials: Joachim Kock, Peter LeFanu Lumsdaine * Registration closes 8 May 2015. CALL FOR PARTICIPATION 21st International Conference on Types for Proofs and Programs, TYPES 2015 Tallinn, Estonia, 18-21 May 2015 http://cs.ioc.ee/types15/ Background The TYPES meetings are a forum to present new and on-going work in all aspects of type theory and its applications, especially in formalized and computer assisted reasoning and computer programming. The meetings from 1990 to 2008 were annual workshops of a sequence of five EU funded networking projects. Since 2009, TYPES has been run as an independent conference series. Previous TYPES meetings were held in Antibes (1990), Edinburgh (1991), Båstad (1992), Nijmegen (1993), Båstad (1994), Torino (1995), Aussois (1996), Kloster Irsee (1998), Lökeberg (1999), Durham (2000), Berg en Dal near Nijmegen (2002), Torino (2003), Jouy en Josas near Paris (2004), Nottingham (2006), Cividale del Friuli (2007), Torino (2008), Aussois (2009), Warsaw (2010), Bergen (2011), Toulouse (2013), Paris (2014). The TYPES areas of interest include, but are not limited to: foundations of type theory and constructive mathematics; applications of type theory; dependently typed programming; industrial uses of type theory technology; meta-theoretic studies of type systems; proof assistants and proof technology; automation in computer-assisted reasoning; links between type theory and functional programming; formalizing mathematics using type theory. Invited Gilles Barthe (IMDEA Software) Computer-aided cryptography Andrej Bauer (University of Ljubljana) The troublesome reflection rule Peter Selinger (Dalhousie University) Types for quantum computing Tutorials Joachim Kock (Universitat Autònoma de Barcelona) Polynomial functors: a general framework for induction and substitution Peter LeFanu Lumsdaine (Stockholm University) Higher inductive types: what we understand, what we don't Contributed talks See the programme at http://cs.ioc.ee/types15/programme.html Host city and venue Tallinn, on the shores of the Gulf of Finland, is famous for its medieval Old Town. The conference will take place at the historic House of the Blackheads in the middle of the Old Town. The welcome reception of the conference will be at the spectacular Seaplane Harbour, which received a special commendation from the 2014 European Museum of the Year competition. Registration Please register online by 8 May 2015. Programme committee Andrea Asperti (Università di Bologna) Robert Atkey (University of Edinburgh) Ulrich Berger (Swansea University) Jean-Philippe Bernardy (Chalmers University of Technology) Edwin Brady (University of St Andrews) Joëlle Despeyroux (INRIA Sophia Antipolis - Méditerranée) Herman Geuvers (Radboud Universiteit Nijmegen) Sam Lindley (University of Edinburgh) Assia Mahboubi (INRIA Saclay - Île-de-France) Ralph Matthes (IRIT, CNRS and Université Paul Sabatier) Aleksandar Nanevski (IMDEA Software) Christine Paulin-Mohring (LRI, Université Paris-Sud) Simona Ronchi Della Rocca (Università di Torino) Ulrich Schöpp (Ludwig-Maximilians-Universität München) Bas Spitters (Carnegie Mellon University) Pawel Urzyczyn (University of Warsaw) Tarmo Uustalu (Institute of Cybernetics, Tallinn) (chair) Organizers Logic and semantics group, Institute of Cybernetics, Tallinn Sponsors ERDF via EXCS, the Estonian Centre of Excellence in Computer Science [For admin and other information see: http://www.mta.ca/~cat-dist/ ]