Abstract deadline in 6 days! Open call for papers Post-proceedings of the 23rd International Conference on Types for Proofs and Programs TYPES 2017 TYPES is a major forum for the presentation of research on all aspects of type theory and its applications. TYPES 2017 was held between 29 May and 1 June in Budapest, Hungary. The post-proceedings volume will be published in LIPIcs, Leibniz International Proceedings in Informatics, an open-access series of conference proceedings (http://www.dagstuhl.de/en/publications/lipics). Submission to this post-proceedings volume is open to everyone, also to those who did not participate in the conference. We would like to invite all researchers that study and apply type systems to share their results. In particular, we welcome submissions on the following topics: * Foundations of type theory and constructive mathematics; * Homotopy type theory; * 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; * Type theory in linguistics. IMPORTANT DATES * Abstract submission: 16 October 2017 * Paper submission: 23 October 2017 * Author notification: 26 March 2018 DETAILS * Papers have to be formatted with lipics.cls and adhere to the style requirements of LIPIcs. http://www.dagstuhl.de/en/publications/lipics/instructions-for-authors/ * The recommended length of a paper is 15-25 pages. Submissions significantly longer than 25 pages will not be considered. * Papers have to be submitted in pdf through EasyChair: https://easychair.org/conferences/?conf=types2017postproceed * Authors have the option to attach to their submission a zip or tgz file containing code (formalized proofs or programs), but reviewers are not obliged to take those attachments into account and they will not be published. * More information is available on http://types2017.elte.hu/#postproc * In case of questions, please contact one of the editors. EDITORS Andreas Abel andreas.abel@gu.se Gothenburg University, Sweden Fredrik Nordvall Forsberg fredrik.nordvall-forsberg@strath.ac.uk University of Strathclyde, United Kingdom Ambrus Kaposi akaposi@inf.elte.hu Eötvös Loránd University, Hungary