Kisoron-ml February 2015

2 participants
3 discussions

JAIST Logic Seminar Series
by Hajime Ishihara 28 Feb '15

28 Feb '15

皆様ストックホルム大学のErik Palmgren先生の連続講義のお知らせです。ふるってご参加ください。問合せ先：石原　哉北陸先端科学技術大学院大学情報科学研究科 e-mail: ishihara(a)jaist.ac.jp -------------------------------------------------- * JAIST Logic Seminar Series * * This seminar is held as a part of the EU FP7 Marie Curie Actions IRSES project CORCON (http://corcon.net/). Date: Lecture 1. Monday 9 March, 2015, 15:10-16:40 Lecture 2. Tuesday 10 March, 2015, 15:10-16:40 Lecture 3. Wednesday 11 March, 2015, 15:10-16:40 Place: JAIST, Lecture room I3-I4 (Access: http://www.jaist.ac.jp/english/location/access.html) Speaker: Professor Erik Palmgren (Department of Mathematics, Stockholm University) Title: Lectures on type theory with a view towards formalizing Bishop-style mathematics Abstract: In this series of three lectures we give an introduction to Martin-Lof type theory and the tools it provides for formalizing Bishop-style constructive mathematics. The first lecture will cover basic principles of type theory and give an introduction to its manifestation in the well-known proof assistant Coq. In the second lecture we consider "Bishop's set theory" (Bishop and Bridges 1985) from the point of view of type theory, which will involve a development the theory of setoids and subsetoids. The third lecture will cover models constructive set theory (CZF) in type theory, and how it can be used to solve the problem of universes of setoids and development of category theory. Throughout the lectures we provide examples and suggestions how you can yourself experiment with the Coq system in the formalization of constructive mathematics. References E. Bishop and D.S. Bridges. Constructive Analysis. Springer 1985. E. Palmgren. Lecture notes on Type Theory. Stockholm 2014. URL: http://kurser.math.su.se/course/view.php?id=48 E. Palmgren and O. Wilander. Constructing categories and setoids of setoids in type theory. Logical Methods in Computer Science. 10(2014), Issue 3, paper 25.

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Prof. Georg Moser at NII Logic Seminar
by Makoto Tatsuta 07 Feb '15

07 Feb '15

Prof. Georg Moser at NII Logic Seminar Date: February 13, 2015, 14:00--16:00 Place: National Institute of Informatics, Room 1208 (12th floor) 場所: 国立情報学研究所 12階 1208室 (半蔵門線,都営地下鉄三田線・新宿線神保町駅または東西線竹橋駅より徒歩5分) (地図 http://www.nii.ac.jp/about/access/) Speaker: Prof. Georg Moser (University of Innsbruck) Title: Amortised Cost Analysis and Term Rewrite Systems Abstract: I will present a univariate resource analysis for typed term rewrite systems based on a potential-based type system. This type system gives rise to polynomial bounds on the innermost runtime complexity. The thus obtained amortised resource analysis relates to polynomial interpretations and we obtain the perhaps surprising result that whenever a rewrite system can be well-typed, then there exists a polynomial interpretation that orients the system. If time permits I'll speak about very recent generalisations to a multivariate analysis. This is a joint work with Martin Hofmann. 問合せ先: 龍田真 (国立情報学研究所) e-mail: tatsuta(a)nii.ac.jp http://research.nii.ac.jp/~tatsuta

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JAIST Logic Workshop Series 2015
by Hajime Ishihara 03 Feb '15

03 Feb '15

皆様来年3月に金沢で開催されるJAIST Logic Workshop Series 2015のお知らせです。ふるってご投稿・ご参加ください。問合せ先：石原　哉・木原貴行・根元多佳子・横山啓太北陸先端科学技術大学院大学情報科学研究科 e-mail: jlws2015(a)jaist.ac.jp -------------------------------------------------------- *Call for Abstracts* JAIST LOGIC WORKSHOP SERIES 2015 Constructivism and Computability 2 March 2015 – 6 March 2015 Shiinoki Cultural Complex, Kanazawa, Japan http://www.jaist.ac.jp/is/labs/ishihara-lab/jlws2015/ -------------------------------------------------------- IMPORTANT DATES November 30 - deadline for abstract submissions December 25 - notification of accepted contributions February 15 - deadline for registrations March 2-6 - Constructivism and Computability workshop TUTORIALS * Giovanni Sambin (University of Padova) * Hideki Tsuiki (Kyoto University) * Stanley Wainer (University of Leeds) INVITED SPEAKERS * Ulrich Berger (Swansea University) * Takayuki Kihara (JAIST) * Graham Leigh (Vienna University of Technology) * Michael Rathjen (University of Leeds) * Masahiko Sato (Kyoto University) * Makoto Tatsuta (National Institute of Informatics) PROGRAM COMMITTEE * Toshiyasu Arai (Chiba University) * Andrej Bauer (University of Ljubljana) * Ulrich Berger (Swansea University) * Hajime Ishihara (co-chair, JAIST) * Masahiro Kumabe (Open University of Japan) * Erik Palmgren (Stockholm University) * Peter Schuster (University of Leeds) * Helmut Schwichtenberg (co-chair, LMU Munich) * Dieter Spreen (University of Siegen, UNISA Pretoria) * Kazuyuki Tanaka (Tohoku University) SUBMISSIONS Submissions of short abstracts (1 page in PDF format) are accepted through easychair.org, see https://easychair.org/conferences/?conf=jlws2015 DESCRIPTION JAIST Logic Workshop Series is a workshop series bringing together researchers from mathematical logic and its application, especially to artificial intelligence and software science. Each workshop has its own focus on a specific area of research in mathematical logic and its application. Previous workshops have been held in Kanazawa 2013, 2014 and 2014: http://www.jaist.ac.jp/~hirokawa/pr2013/ http://www.jaist.ac.jp/~preining/wpp/ http://www.jaist.ac.jp/~v-sano/jw2014/index.html In 2015, JAIST Logic Workshop Series focuses on “Constructivism and Computability” aiming at interaction and knowledge transfer between constructive mathematics and computability theory. The workshop is held being affiliated with EU FP7 Marie Curie Actions IRSES projects COMPUTAL (http://computal.uni-trier.de/) and CORCON (http://corcon.net/), but is open to all researchers in the areas. SCOPE Constructive mathematics and computability, and related areas including but not limited to: intuitionistic logic and type theory, proof theory, constructive analysis and topology, program extraction from proofs, recursion theory, computable analysis and topology, classical/constructive reverse mathematics, algorithmic randomness, real number computation etc. LOCAL ORGANIZERS * Hajime Ishihara (JAIST) * Takayuki Kihara (JAIST) * Takako Nemoto (JAIST) * Keita Yokoyama (JAIST) The workshop is supported by: * Japan Advanced Institute of Science and Technology (JAIST) CO-LOCATED WORKSHOP * JSPS-NUS Joint Workshop in Mathematica Logic and Foundations of Mathematics (6-7 March 2015, at the same venue)

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Kisoron-ml February 2015