Logic-ml April 2011

12 participants
14 discussions

*DL Approaching* RIMS Workshop "ACAN: Algebraic and Coalgebraic Approaches to Non-Classical Logics"
by Ichiro Hasuo 28 Apr '11

28 Apr '11

みなさま，以前お知らせした京大数理研の研究集会のご案内ですが（下です），旅費補助，数理研宿舎，講演，懇親会の申込みの締切りが *** 5/1 日曜日 *** です．また， - ちょうど親鸞750回忌と重なって，京都市内のホテルが大混雑です． - 数理研の宿舎「北白川学舎」，残室5室です！という都合もありますので，登録・宿舎の手配，どうか早めにお願いいたします．京都でお会いできるのを楽しみにしていますね．それでは！運営：照井一成，佐藤哲也，蓮尾一郎 ---------- Forwarded message ---------- From: Ichiro Hasuo <ichiro(a)kurims.kyoto-u.ac.jp> Date: 2011/4/5 Subject: Call for Contribution and Participation: RIMS Workshop "ACAN: Algebraic and Coalgebraic Approaches to Non-Classical Logics" To: logic-ml <logic-ml(a)sato.kuis.kyoto-u.ac.jp>, sonoteno <sonoteno(a)m.aist.go.jp>, sigemb-info <sigemb-info(a)ertl.jp>, jssst-ppl(a)kb.ecei.tohoku.ac.jp (English version below) みなさま，（何人かの方々には bcc で失礼します）こんにちは！東京大学コンピュータ科学専攻の蓮尾です．京都大学数理解析研究所で行うワークショップ ACAN: Algebraic and Coalgebraic Approaches to Non-Classical Logics RIMS Workshop, Mon 16 - Wed 18 May 2011 https://sites.google.com/site/acanws/ へのお誘いです．現在（3月から5月まで），アムステルダム大学 ILLC の Yde Venema さんが客員教授として京大数理研に滞在されています．Yde さんは様相論理の教科書 (Blackburn-de Rijke-Venema)などで高名な論理学者で，近年は特に余代数的様相論理 coalgebraic modal logic の分野で活躍なさっています． http://staff.science.uva.nl/~yde/ この機会に，Yde さんのご研究分野である様相論理をはじめとしたさまざまな非古典論理と，彼の最近のアプローチである代数・余代数・圏論的手法とをコアトピックとして，数理研での研究集会を企画しました．まず，講演者として以下のかたがたに参加いただきます： Yde Venema さん，Raul Leal さん (ILLC, University of Amsterdam) Jose Gil-Ferez さん， Milan Petrik さん (JAIST) 佐野勝彦さん，丸山善宏さん（京都大学大学院文学研究科）さらに，オーガナイザーによるチュートリアル Algebraic Approaches to Substructural Logics （照井） Coalgebra for Modal Logic(ians) （蓮尾）も企画しています．みなさま，ぜひご参加ください！ - ぜひ講演をご検討ください．非古典論理・代数・余代数の一つでもかすっていれば大歓迎です！ - 国内からの参加者の方には，旅費の補助があります．(予算が限られています．ごめんなさい) - ちょうど親鸞750回忌と重なって，京都市内のホテルが大混雑です．宿泊の予約はぜひお早めに．また，数理研の宿泊施設「北白川学舎」の予約も受け付けます(部屋数限りあり)．詳しい情報，参加登録，講演登録については，ウェブサイト https://sites.google.com/site/acanws/ をご覧になってください．京都でお会いするのを楽しみにしております．それでは！運営：照井一成，佐藤哲也，蓮尾一郎 ================================================= Dear all, This is Ichiro Hasuo at Dept. CS, Univ. Tokyo. This is an invitation to the workshop ACAN: Algebraic and Coalgebraic Approaches to Non-Classical Logics Mon 16 - Wed 18 May 2011 RIMS, Kyoto University https://sites.google.com/site/acanws/ This workshop is organized on the occasion of the visit of Prof.Dr. Yde Venema, a modal logician from ILLC, University of Amsterdam, as a visiting professor at RIMS, Kyoto University. It will feature Yde's talk and talks by * Jose Gil-Ferez (JAIST) * Raul Leal (ILLC, University of Amsterdam) * Yoshihiro Maruyama (Grad. School of Letters, Kyoto University) * Milan Petrik (JAIST) * Katsuhiko Sano (Grad. School of Letters, Kyoto University) as well as tutorial talks by two organizers: * Kazushige Terui on algebraic approaches to substructural logics * Ichiro Hasuo on coalgebra for modal logic(ians) We solicit your participation (and your contributed talk if possible). Some organizational matters: - We will financially support your trip, if it is from inside Japan and within our budget - The hotel rooms in Kyoto will be tight due to a big Buddhism event. So book in advance! Some rooms at the RIMS accommodation are available, too. Visit the website https://sites.google.com/site/acanws/ for more info and registration. Looking forward to seeing you in Kyoto! Best regards, Organization Committee: Kazushige Terui Tetsuya Sato Ichiro Hasuo

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BLAST 2011
by No-Reply 23 Apr '11

23 Apr '11

** BLAST 2011 ** June 1-5, 2011 Lawrence, Kansas REGISTER NOW! BLAST (Boolean algebras, Lattices, Algebraic logic, Set theory, and Topology; quantum logic and point-free topology have been added to the mix) is a series of annual conferences. The first three BLAST conferences were at the University of Denver, New Mexico State University, and the University of Colorado in Boulder. Go to the BLAST 2011 website for complete details: http://www.math.ku.edu/conferences/blast2011 * Important Deadlines * Early registration: May 15, 2011 Abstracts: May 15, 2011 In order to give a talk, one must submit a title and abstract for the talk by May 15, 2011. Please submit titles and abstracts at the Atlas. Abstracts submitted after May 1, 2011, will not appear in the booklet of abstracts. Abstracts may be viewed here: http://atlas-conferences.com/cgi-bin/abstract/cbbs-01 Hotel Accommodations: April 30, 2011 to guarantee conference rates The conference organizers can be contacted at: blast2011(a)math.ku.edu

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Talk by Michele Basaldella at RIMS, Kyoto U. (4/21)
by Kazushige TERUI 18 Apr '11

18 Apr '11

みなさま今週木曜日に催されるセミナーのご案内をさせていただきます。どうぞお気軽にお越しください。照井 --- RIMS-CS website http://www.kurims.kyoto-u.ac.jp/~cs/ ===== Speaker: Michele Basaldella (RIMS, Kyoto University) Title: A gentle introduction to ludics Date: 11.00 - 12.00, April 21st (Thu) Place: Room 478, "Research Bldg. No. 2 (Sougou Kenkyu 2-Goukan)" http://www.kyoto-u.ac.jp/en/access/campus/main.htm (Next to our CS Lab) 総合研究2号館 478号室 (CS室のとなりです) http://www.kyoto-u.ac.jp/ja/access/campus/map6r_y.htm Abstract: When one is interested in understanding the duality between syntax (proofs) and semantics (models) in logic, a primary obstacle is that proofs are finite and concrete objects, while models are infinite and abstract structures. Since proofs and models are so different by their nature, they hardly interact together. This lack of interaction between the two worlds prevents a deeper analysis of the relations between syntax and semantics. Ludics is a research program started by Girard aimed to explain various logical and computational phenomena from an interactive point of view. The universe of ludics consists of designs: partial and infinitary proofs in which the logical type-information has been almost erased. In this vast universe, both proofs and models can be homogeneously represented as designs. Moreover, since designs come from proofs, we can make them interact together via normalization (cut-elimination). This induces an orthogonality relation, based on the termination of the computation of the normal form, which allows to reconstruct the logical types, as bi-orthogonality-closed sets of designs. In this talk we introduce and discuss the basic concepts of ludics and show some completeness results for proofs. --------------------------------------------------------- Kazushige TERUI Research Institute for Mathematical Sciences, Kyoto University. Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto 606-8502, JAPAN. Phone: +81-75-753-7235 Fax: +81-75-753-7276 terui(a)kurims.kyoto-u.ac.jp http://www.kurims.kyoto-u.ac.jp/~terui/

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The 50th ToPS [Apr. 27]
by Kazuyuki ASADA 18 Apr '11

18 Apr '11

[Apologies for multiple copies] I am pleased to announce the 50th Tokyo Programming Seminar, which will be held at NII on April 27 (Wed). Ichiro Hasuo from University of Tokyo and Yde Venema from University of Amsterdam will be talking about coalgebra theory and automata theory. The programme is attached below. I'm looking forward to meeting you at ToPS. Best regards, Kazuyuki Asada ---- The 50th ToPS http://www.ipl.t.u-tokyo.ac.jp/~tops/upcoming_seminar.html Time: April 27th (Wed) 2011, 15:00--17:00 Place: Rm. 2004 & 2005, 20F, National Institute of Informatics Speaker: (1) Ichiro Hasuo (University of Tokyo) Introduction to Coalgebra, through Final Sequences Abstract: In this talk I wish to deliver an elementary and informal introduction to the theory of coalgebra---a mathematical machinery underlying coinductive datatypes in functional programming---focusing on its aspect of being the categorical dual to algebra. More specifically, I'll first review the categorical "initial sequence" construction of an initial algebra, and then elaborate on its dual--the "final sequence" construction of a final coalgebra. A trip along these sequences is a good way to familiarize ourselves with the essence of induction and coinduction, and the contrast between them. (2) Yde Venema (University of Amsterdam) Coalgebra Automata Abstract: Automata operating on infinite objects provide an invaluable tool for the spcification and verification of programs. Many of the infinite objects studied in this area, such as words/streams, trees, graphs or transition systems, represent ongoing behaviour in some way, and provide key specimens of coalgebras. Hence it make sense to develop a universal theory of coalgebra automata: automata operating on coalgebras. The motivation underlying the introduction of coalgebra automata is to gain a deeper understanding of this branch of automata theory by studying properties of automata in a uniform manner, parametric in the type of the recognized structures. Coalgebraic automata theory thus contributes to Universal Coalgebra as a mathematical theory of state-based evolving systems. In the talk we give a quick introduction to coalgebra, and we introduce the notion of a coalgebra automaton. We will see that in fact a large part of the theory of parity automata can be lifted to a coalgebraic level of generality, and thus indeed belongs to the theory of Universal Coalgebra. More specifically, coalgebra automata satisfy various closure properties: under some conditions on the coalgebraic type, the collection of recognizable languages are closed under taking union, intersection, complementation, and existential projections. Time permitting, we will discuss two kinds of coalgebra automata, corresponding to approaches in coalgebraic logic that are based on, respectively, relation lifting and predicate liftings. Our results have many applications in the theory of coalgebraic fixpoint logics), but these will only be discussed tangentially.

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Talk by Michele Basaldella at RIMS, Kyoto U. (4/21)
by Kazushige TERUI 17 Apr '11

17 Apr '11

みなさま今週木曜日に催されるセミナーのご案内をさせていただきます。どうぞお気軽にお越しください。照井 --- RIMS-CS website http://www.kurims.kyoto-u.ac.jp/~cs/ ===== Speaker: Michele Basaldella (RIMS, Kyoto University) Title: A gentle introduction to ludics Date: 11.00 - 12.00, April 21st (Thu) Place: Room 478, "Research Bldg. No. 2 (Sougou Kenkyu 2-Goukan)" http://www.kyoto-u.ac.jp/en/access/campus/main.htm (Next to our CS Lab) 総合研究2号館 478号室 (CS室のとなりです) http://www.kyoto-u.ac.jp/ja/access/campus/map6r_y.htm Abstract: When one is interested in understanding the duality between syntax (proofs) and semantics (models) in logic, a primary obstacle is that proofs are finite and concrete objects, while models are infinite and abstract structures. Since proofs and models are so different by their nature, they hardly interact together. This lack of interaction between the two worlds prevents a deeper analysis of the relations between syntax and semantics. Ludics is a research program started by Girard aimed to explain various logical and computational phenomena from an interactive point of view. The universe of ludics consists of designs: partial and infinitary proofs in which the logical type-information has been almost erased. In this vast universe, both proofs and models can be homogeneously represented as designs. Moreover, since designs come from proofs, we can make them interact together via normalization (cut-elimination). This induces an orthogonality relation, based on the termination of the computation of the normal form, which allows to reconstruct the logical types, as bi-orthogonality-closed sets of designs. In this talk we introduce and discuss the basic concepts of ludics and show some completeness results for proofs. ------------------------------------------ Kazushige TERUI Research Institute for Mathematical Sciences, Kyoto University. Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto 606-8502, JAPAN. Phone: +81-75-753-7235 Fax: +81-75-753-7276 terui(a)kurims.kyoto-u.ac.jp http://www.kurims.kyoto-u.ac.jp/~terui/

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CFP: (締切延長)第84回プログラミング研究会発表募集
by Takahito Aoto 16 Apr '11

16 Apr '11

皆様， 6月に函館で開催予定の，情報処理学会第84回プログラミング研究会の発表申込締切が一週間ほど延長になりました．発表申込時点で必要なのはタイトルと概要などとなっております．また，投稿を伴なわない発表も受けつけております． http://www.ipsj.or.jp/sig/pro/trans-author.html 投稿・発表について今一度ご検討いただければ幸いです． --- 青戸等人東北大学電気通信研究所 http://www.nue.riec.tohoku.ac.jp/user/aoto/ ------------------------------------------------------------------ ＊＊＊＊複数受け取られた方はご容赦ください＊＊＊＊【発表申込締切が 4/22(金) に延長されました】この場を借りて2011年度第1回情報処理学会プログラミング研究発表会の発表募集のご案内をさせて頂きたく存じます．プログラミング研究会(PRO)は，・プログラミング言語の設計，処理系の実装・プログラミングの理論，基本概念・プログラミング環境，支援システム・プログラミング方法論，パラダイム・これらを応用したシステムの開発事例・その他，プログラミングに関する面白い話題を対象とした研究発表の場で，1998年度から毎年3〜4回のペースで論文誌を発行しています．PRO論文誌は研究会と密接にリンクしており，研究会で発表されたもののうちあらかじめ論文投稿を希望し，論文原稿を提出されているものが査読の対象となっています (論文誌投稿を希望しない発表も歓迎します)．おおむね研究会から3週間で論文の採否が決定されるという迅速さも大きな特徴です．2011年6月の研究会も多くの発表ならびに論文投稿をお待ちしております．参加費は無料です．申込締切が4月22日に延長されましたので，よろしくご検討ください．なお，多数の発表申込みがある場合には，発表をお断りすることがございますので，お早めにお申し込みください．第84回プログラミング研究会(PRO-2011-1)発表募集日程: 2011年6月14日(火)・15日(水) 会場: サン・リフレ函館〒040-0034 北海道函館市大森町2-14 JR函館駅より徒歩15分発表申込締切: 2011年4月22日(金)【延長されました】投稿論文原稿提出締切: 2011年5月14日(土) 申込先: 青戸等人 (東北大学電気通信研究所) E-mail: aoto [at] nue.riec.tohoku.ac.jp Tel: 022-217-5420 / Fax: 022-217-5426 (電気通信研究所) 案内ページ: http://www.nue.riec.tohoku.ac.jp/pro-2011-1/ ・申込みに当たっての注意はプログラミング研究会のページ http://www.ipsj.or.jp/sig/pro/ を参照してください．・できるだけE-mailでお願いします．・申込み後返信がない場合はご連絡下さい． ------------------------------------------------------------------

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助教公募（北陸先端科学技術大学院大学情報科学研究科）
by Hajime Ishihara 15 Apr '11

15 Apr '11

皆様、北陸先端大の石原です。北陸先端科学技術大学院大学情報科学研究科では以下のように、助教の公募を行っております。専門の例示にとらわれず、数理論理学・数学基礎論関連分野から多数の応募をお待ちしております。関係の方々への周知のため、参加されているメーリングリストやお心当たりの方へ転送していいただければ幸いです。公募人員　　理論情報科学領域　助教（任期付）１名専門分野　　数理論理学・数学基礎論着任時期　　平成23年10月１日以降出来る限り早い時期任期　　　　　５年 (再任あり) 応募締切　　平成23年6月27日（月）必着詳しい公募要領は http://www.jaist.ac.jp/jimu/syomu/koubo/logic.html でご覧いただけます。北陸先端科学技術大学院大学情報科学研究科に関しては http://www.jaist.ac.jp/is/2008ja/index.html をご覧ください。どうぞよろしくお願いいたします。 -- Professor Hajime Ishihara School of Information Science Japan Advanced Institute of Science and Technology 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan Tel: +81-761-51-1206 Fax: +81-761-51-1149 ishihara(a)jaist.ac.jp http://www.jaist.ac.jp/~ishihara

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PhD Program: Call for applications
by Bertram Fronhöfer 09 Apr '11

09 Apr '11

Please pass on this CALL FOR APPLICATIONS to all people who might be interested in. ====================================================== European PhD Program in Computational Logic (EPCL) ====================================================== http://www.epcl-study.eu/ CALL FOR APPLICATIONS The European PhD Program in Computational Logic (EPCL) is run jointly by four of the leading European universities in the field: - Free University of Bozen-Bolzano (Italy), - Technische Universit�t Dresden (Germany), - Technische Universit�t Wien (Austria), and - Universidade Nova de Lisboa (Portugal). Further international universities, research organizations and enterprises which contribute to Computational Logic or apply results from it are involved as associated partners: The Simon Fraser University (Canada), the Universidad de Chile, the National ICT Australia Limited (NICTA), and several companies. The program involves three years of PhD study in at least two of the European partner universities. It leads to a joint doctoral degree of the partner universities at which the studies have been physically performed. The language of the program is English. Financial support is available in the form of positions and scholarships. Necessary requirements for participation in EPCL are a Master's degree in Computer Science or Mathematics, or an equivalent degree; the proof of adequate knowledge of English; and substantial knowledge in the areas Foundations of Logics, Foundations of Artificial Intelligence and Declarative Programming. The program will start on 1 October 2011. Applications have to be electronically submitted on the Webpage http://www.epcl-study.eu/, before the ======================================= Application Deadline on 15 May 2011 ======================================= If you have enquiries, please do not hesitate to contact the coordinator of the program Prof. Steffen H�lldobler Technische Universit�t Dresden Fakult�t Informatik International Center for Computational Logic Email: sh(a)iccl.tu-dresden.de Phone: +49 (351) 463 38340 EPCL is supported by the German Federal Ministry of Education and Research (BMBF) within the German Academic Exchange Service (DAAD) program International Doctorates in Germany (IPID).

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Call for Contribution and Participation: RIMS Workshop "ACAN: Algebraic and Coalgebraic Approaches to Non-Classical Logics"
by Ichiro Hasuo 08 Apr '11

08 Apr '11

(English version below) みなさま，（何人かの方々には bcc で失礼します）こんにちは！東京大学コンピュータ科学専攻の蓮尾です．京都大学数理解析研究所で行うワークショップ ACAN: Algebraic and Coalgebraic Approaches to Non-Classical Logics RIMS Workshop, Mon 16 - Wed 18 May 2011 https://sites.google.com/site/acanws/ へのお誘いです．現在（3月から5月まで），アムステルダム大学 ILLC の Yde Venema さんが客員教授として京大数理研に滞在されています．Yde さんは様相論理の教科書 (Blackburn-de Rijke-Venema)などで高名な論理学者で，近年は特に余代数的様相論理 coalgebraic modal logic の分野で活躍なさっています． http://staff.science.uva.nl/~yde/ この機会に，Yde さんのご研究分野である様相論理をはじめとしたさまざまな非古典論理と，彼の最近のアプローチである代数・余代数・圏論的手法とをコアトピックとして，数理研での研究集会を企画しました．まず，講演者として以下のかたがたに参加いただきます： Yde Venema さん，Raul Leal さん (ILLC, University of Amsterdam) Jose Gil-Ferez さん， Milan Petrik さん (JAIST) 佐野勝彦さん，丸山善宏さん（京都大学大学院文学研究科）さらに，オーガナイザーによるチュートリアル Algebraic Approaches to Substructural Logics （照井） Coalgebra for Modal Logic(ians) （蓮尾）も企画しています．みなさま，ぜひご参加ください！ - ぜひ講演をご検討ください．非古典論理・代数・余代数の一つでもかすっていれば大歓迎です！ - 国内からの参加者の方には，旅費の補助があります．(予算が限られています．ごめんなさい) - ちょうど親鸞750回忌と重なって，京都市内のホテルが大混雑です．宿泊の予約はぜひお早めに．また，数理研の宿泊施設「北白川学舎」の予約も受け付けます(部屋数限りあり)．詳しい情報，参加登録，講演登録については，ウェブサイト https://sites.google.com/site/acanws/ をご覧になってください．京都でお会いするのを楽しみにしております．それでは！運営：照井一成，佐藤哲也，蓮尾一郎 ================================================= Dear all, This is Ichiro Hasuo at Dept. CS, Univ. Tokyo. This is an invitation to the workshop ACAN: Algebraic and Coalgebraic Approaches to Non-Classical Logics Mon 16 - Wed 18 May 2011 RIMS, Kyoto University https://sites.google.com/site/acanws/ This workshop is organized on the occasion of the visit of Prof.Dr. Yde Venema, a modal logician from ILLC, University of Amsterdam, as a visiting professor at RIMS, Kyoto University. It will feature Yde's talk and talks by * Jose Gil-Ferez (JAIST) * Raul Leal (ILLC, University of Amsterdam) * Yoshihiro Maruyama (Grad. School of Letters, Kyoto University) * Milan Petrik (JAIST) * Katsuhiko Sano (Grad. School of Letters, Kyoto University) as well as tutorial talks by two organizers: * Kazushige Terui on algebraic approaches to substructural logics * Ichiro Hasuo on coalgebra for modal logic(ians) We solicit your participation (and your contributed talk if possible). Some organizational matters: - We will financially support your trip, if it is from inside Japan and within our budget - The hotel rooms in Kyoto will be tight due to a big Buddhism event. So book in advance! Some rooms at the RIMS accommodation are available, too. Visit the website https://sites.google.com/site/acanws/ for more info and registration. Looking forward to seeing you in Kyoto! Best regards, Organization Committee: Kazushige Terui Tetsuya Sato Ichiro Hasuo

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(First Announcement) RIMS 研究集会 ( 集合論分野 ) について
by FUJITA Hiroshi 07 Apr '11

07 Apr '11

このメールは研究協力者をお引受けいただいた皆様に直接お送りするほか, 同じ文面で Logic-ML にも投稿いたします. ご了承くださいませ. 毎年秋に京都大学数理解析研究所で開催しております集合論分野のRIMS研究集会ですが、今年2011年はわたくし藤田博司が世話役を担当させていただきます。今年は、10月19日水曜日〜同21日金曜日の3日間にわたって記述集合論の展望 (Aspects of Descriptive Set Theory)」という研究題目のもとで研究集会を開催いたします。今年は, 海外からのゲストスピーカーとして Slaomir Solecki (Illinois大学, USA) Stephan Gescke (Bonn大学, ドイツ) Tamas Matrai (Rutgers大学, USA) の三方をお招きしており, SoleckiさんとGeschkeさんにはそれぞれ60分×3回のミニコース, Matraiさんには60分の招待講演をお願いしております. 広い意味で記述集合論に関連する諸分野 (実数の集合論, 内部モデル, 強制法, 巨大基数公理, 集合論的実解析学, など) の講演を募ります. お名前と所属と職名 (それぞれ英語表記を添えて) 講演タイトルを, 8月中を目処にわたくし藤田までお知らせください. なおこの研究集会のホームページを http://www.math.sci.ehime-u.ac.jp/~fujita/RIMS-settheory-2011.html に作ります. いろいろのお知らせを掲載していきますので時折開いてみてください. 旅費や宿泊などについての詳細を含むSecond Announcementを9月上旬に流します. -- 藤田博司 <fujita.hiroshi.mh(a)ehime-u.ac.jp>

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Logic-ml April 2011