Updated on 2025/09/30

写真a

 
KASHIMA Ryo
 
Organization
School of Computing Associate Professor
Title
Associate Professor
External link

Degree

  • Doctor of Science ( Tokyo Institute of Technology )

Research Interests

  • Mathematical Logic

Research Areas

  • Natural Science / Basic mathematics

Education

  • Tokyo Institute of Technology   Science of Engineering

    - 1991

      More details

    Country: Japan

    researchmap

  • Tokyo Institute of Technology   Graduate School, Division of Science and Engineering

    - 1991

      More details

  • Tokyo Institute of Technology   School of Science

    - 1988

      More details

    Country: Japan

    researchmap

Professional Memberships

Committee Memberships

  • 日本数学会   数学基礎論分科会運営委員  

    2008   

      More details

    Committee type:Academic society

    日本数学会

    researchmap

Papers

  • On the completeness and the decidability of strictly monadic second‐order logic

    Kento Takagi, Ryo Kashima

    Mathematical Logic Quarterly   66 ( 4 )   438 - 447   2021.1

     More details

    Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/malq.201900046

    researchmap

  • Term-Space Semantics of Typed Lambda Calculus

    Ryo Kashima, Naosuke Matsuda, Takao Yuyama

    Notre Dame Journal of Formal Logic   61 ( 4 )   2020.11

     More details

    Publishing type:Research paper (scientific journal)   Publisher:Duke University Press  

    DOI: 10.1215/00294527-2020-0028

    researchmap

  • Reduction Rules for Intuitionistic $${ { \lambda}{\rho } }$$ λ ρ -calculus

    Ken-etsu Fujita, Ryo Kashima, Yuichi Komori, Naosuke Matsuda

    Studia Logica   103 ( 6 )   1225 - 1244   2015.12

     More details

    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media {LLC}  

    DOI: 10.1007/s11225-015-9616-1

    researchmap

  • An axiomatization of ECTL

    R. Kashima

    Journal of Logic and Computation   24 ( 1 )   117 - 133   2013.3

     More details

    Publishing type:Research paper (scientific journal)   Publisher:Oxford University Press ({OUP})  

    DOI: 10.1093/logcom/ext005

    researchmap

Books

  • 数理論理学

    朝倉書店  2009  ( ISBN:9784254117653

     More details

  • C言語による計算の理論

    サイエンス社  2008  ( ISBN:9784781912141

     More details

  • ゲーデルと20世紀の論理学・第3巻・不完全性定理と算術の体系

    東京大学出版会  2007 

     More details

  • 数学基礎論講義-不完全性定理とその発展

    日本評論社  1997 

     More details

MISC

  • A proof of the completeness theorem for the modal logic with transitive closure of accessibility relation

    RYO KASHIMA

    Research Reports on Mathematical and Computing Sciences   C-266   2009

     More details

  • A proof of the completeness theorem for the modal logic with transitive closure of accessibility relation

    RYO KASHIMA

    Research Reports on Mathematical and Computing Sciences   C-266   2009

     More details

  • General models and completeness of first-order modal mu-calculus

    Ryo Kashima, Keishi Okamoto

    JOURNAL OF LOGIC AND COMPUTATION   18 ( 4 )   497 - 507   2008.8

     More details

  • Sequent calculi for some strict implication logics

    Ryo Ishigaki, Ryo Kashia

    LOGIC JOURNAL OF THE IGPL   16 ( 2 )   155 - 174   2008.4

     More details

  • Completeness Theorem of First-Order Modal mu-calculus

    Ryo Kashima, Keishi Okamoto

    Research Reports on Mathematical and Computing Sciences, TIT   C-244   2007

     More details

  • 中間述語論理CDについて

    鹿島亮

    京都大学数理解析研究所講究録   1533   2007

     More details

  • Completeness Theorem of First-Order Modal mu-calculus

    Ryo Kashima, Keishi Okamoto

    Research Reports on Mathematical and Computing Sciences, TIT   C-244   2007

     More details

  • A Proof-Theoretical Study on Logics with Constructible Falsity (Sequent Calculi and Proof Theory)

    Hasuo Ichiro, Kashima Ryo

    RIMS Kokyuroku   1301   92 - 121   2003.1

     More details

    Language:English   Publisher:Kyoto University  

    CiNii Books

    researchmap

    Other Link: http://hdl.handle.net/2433/42731

  • A Proof-Theoretical Study on Logics with Constructible Falsity

    Ichiro Hasuo, Ryo Kashima

    Research Reports on Mathematical and Computing Sciences, TIT   C-165   2003

     More details

  • On semilattice relevant logics

    Ryo Kashima

    Mathematical Logic Quarterly   49 ( 4 )   401 - 414   2003

     More details

  • Sequent Calculi for Visser's Propositional Logics

    Katsumasa Ishii Ryo, Kashima Kentaro Kikuchi

    Notre Dame Journal of Formal Logic   42 ( 1 )   1 - 22   2003

     More details

  • Kripke completeness of first-order constructive logics with strong negation

    Ichiro Hasuo, Ryo Kashima

    LOGIC JOURNAL OF THE IGPL   11 ( 6 )   615 - 646   2003

     More details

  • A Proof-Theoretical Study on Logics with Constructible Falsity

    Ichiro Hasuo, Ryo Kashima

    Research Reports on Mathematical and Computing Sciences, TIT   C-165   2003

     More details

  • On semilattice relevant logics

    R Kashima

    MATHEMATICAL LOGIC QUARTERLY   49 ( 4 )   401 - 414   2003

     More details

  • Kripke Completeness of First-Order Constructive Logics with Strong Negation

    Ichiro Hasuo, Ryo Kashima

    Logic Journal of the Interest Group in Pure and Applied Logics   11 ( 6 )   615 - 646   2003

     More details

  • Sequent Calculi for Visser's Propositional Logics

    Katsumasa Ishii, Ryo Kashima, Kentaro Kikuchi

    Notre Dame Journal of Formal Logic   42 ( 1 )   1 - 22   2001.1

     More details

    Publisher:Duke University Press  

    DOI: 10.1305/ndjfl/1054301352

    researchmap

  • Proof Theoretical Studies on Semilattice Relevant Logics

    Ryo Kashima

    Research Reports on Mathematical and Computing Sciences, TIT   C-157   2001

     More details

  • Proof Theoretical Studies on Semilattice Relevant Logics

    Ryo Kashima

    Research Reports on Mathematical and Computing Sciences, TIT   C-157   2001

     More details

  • Completeness of implicational relevant logics

    R Kashima

    Logic Journal of IGPL   8 ( 6 )   761 - 785   2000.11

     More details

    Publisher:Oxford University Press ({OUP})  

    DOI: 10.1093/jigpal/8.6.761

    researchmap

  • A Proof of the Standardization Theorem in Lambda-Calculus

    Ryo Kashima

    Research Reports on Mathematical and Computing Sciences, TIT   C-145   2000

     More details

  • Completeness of Implicational Relevant Logics

    Ryo Kashima

    Logic Journal of the IGPL   8 ( 6 )   761 - 785   2000

     More details

  • A Proof of the Standardization Theorem in Lambda-Calculus

    Ryo Kashima

    Research Reports on Mathematical and Computing Sciences, TIT   C-145   2000

     More details

  • Labelled sequent calculi and completeness theorems for implicational relevant logics

    Ryo Kashima

    Research Reports on Mathematical and Computing Sciences, TIT   C-140   1999

     More details

  • Substructural Implicational Logics Including the Relevant Logic E

    Ryo Kashima, Norihiro Kamide

    Studia Logica   63 ( 2 )   181 - 212   1999

     More details

  • Labelled sequent calculi and completeness theorems for implicational relevant logics

    Ryo Kashima

    Research Reports on Mathematical and Computing Sciences, TIT   C-140   1999

     More details

  • Substructural Implicational Logics Including the Relevant Logic E

    Ryo Kashima, Norihiro Kamide

    Studia Logica   63 ( 2 )   181 - 212   1999

     More details

    Publisher:Springer Science and Business Media {LLC}  

    DOI: 10.1023/a:1005210613711

    researchmap

  • Contraction-elimination for implicational logics

    R Kashima

    ANNALS OF PURE AND APPLIED LOGIC   84 ( 1 )   17 - 39   1997.3

     More details

    Language:English  

    Web of Science

    researchmap

  • Contraction-Elimination for Implicational Logics

    RYO KASHIMA

    Annals of Pure and Applied Logic   84   17 - 39   1997

     More details

  • On the difficulty of writing out formal proofs in arithmetic

    R Kashima, T Yamaguchi

    MATHEMATICAL LOGIC QUARTERLY   43 ( 3 )   328 - 332   1997

     More details

    Language:English  

    Web of Science

    researchmap

  • Cut-free sequent calculi for some tense logics

    Ryo Kashima

    Studia Logica   53 ( 1 )   119 - 135   1994.3

     More details

    Language:English   Publisher:Kluwer Academic Publishers  

    DOI: 10.1007/BF01053026

    Scopus

    researchmap

  • Cut-Free Sequent Calculi for Some Tense Logics

    RYO KASHIMA

    Studia Logica   53   119   1994

     More details

  • CUT-ELIMINATION THEOREM FOR THE LOGIC OF CONSTANT DOMAINS

    R KASHIMA, T SHIMURA

    MATHEMATICAL LOGIC QUARTERLY   40 ( 2 )   153 - 172   1994

     More details

    Language:English  

    Web of Science

    researchmap

  • Cut‐Elimination Theorem for the Logic of Constant Domains

    Ryo Kashima, Tatsuya Shimura

    Mathematical Logic Quarterly   40 ( 2 )   153 - 172   1994

     More details

  • The Word Problem for Free BCI-Algebras Is Decidable

    Ryo Kashima

    Mathematica Japonica   37   1025   1992

     More details

  • The Word Problem for Free BCI-Algebra Is Decidable

    Ryo Kashina, Yuichi Komori

    Mathematica Japonica   37   1025   1992

     More details

▼display all

Presentations

  • 非古典論理のシーケント計算 ― 完全性定理のシーケント計算による証明

    日本数学会 数学基礎論分科会 1999年度年会  1999 

     More details

  • Semilattice Relevant Logics について

    日本数学会2001年度秋季総合分科会数学基礎論分科会  2001 

     More details

    Presentation type:Poster presentation  

    researchmap

  • On the Standardization Theorem for Lambda-Beta-Eta-Calculus

    International Workshop on Rewriting in Proof and Computation (RPC'01)  2001 

     More details

  • On the Standardization Theorem for Lambda-Beta-Eta-Calculus

    International Workshop on Rewriting in Proof and Computation (RPC'01)  2001 

     More details

  • 非反射的様相を持つ論理の完全性について

    日本数学会2004年度秋季総合分科会  2004 

     More details

    Presentation type:Poster presentation  

    researchmap

  • Bimodal Logics with Irreflexive Modality

    1st World Congress on Universal Logic  2005 

     More details

    Presentation type:Poster presentation  

    researchmap

  • Bimodal Logics with Irreflexive Modality

    1st World Congress on Universal Logic  2005 

     More details

    Presentation type:Poster presentation  

    researchmap

  • 中間命題論理の公理に関する問題

    日本数学会年会  2006 

     More details

    Presentation type:Poster presentation  

    researchmap

  • 述語様相μ計算の完全性について

    日本数学会2007年度年会  2007 

     More details

    Presentation type:Poster presentation  

    researchmap

  • 到達可能関係の推移的閉包を扱う様相論理の完全性

    日本数学会 数学基礎論分科会 講演アブストラクト  2009 

     More details

▼display all

Works

  • 様相μ計算に関する研究

    2007

     More details

    Work type:Artistic work  

    researchmap

Research Projects

  • モデル検査のための構成的ミュー計算

    Grant number:24KF0214  2024.11 - 2027.3

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    鹿島 亮

      More details

    Grant amount:\2000000 ( Direct Cost: \2000000 )

    researchmap

  • 様相ミュー計算と確率ゲームへの逆数学的アプローチ:ハイブリッド検査法の創出と分析

    Grant number:23K21641  2021.4 - 2023.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    田中 一之, 宮部 賢志, 鹿島 亮, 木原 貴行

      More details

    Grant amount:\17290000 ( Direct Cost: \13300000 、 Indirect Cost:\3990000 )

    本研究の目的は,モデル検査など論理学の応用技術において仮定される論理や集合の公理が何かを探査し,異なる技法の間の類似性や相異性を顕在化することで,ハイブリッド技術の創出を目指すものである.初年度(令和3年度)においては5つの領域に焦点を絞り,それぞれの課題を探求し,得られた知見を統合して多角的な検討を加えて,より高度な視点を得る計画であった.しかし,コロナ禍の行動制限により研究交流がほとんど行えず,とくに本研究で重要な役割を担う中国とシンガポールの協力者たちとの交流には長い空白ができてしまったので,代表者は北京の応用数学研究所に滞在して彼らとの交流基盤の回復に努め,体制が整うまで本研究を中断することにした.従って,本年度の研究も未完結であるが,個別課題ごとには次のような顕著な成果が得られた.
    1. 様相μ計算の論理式は,演算子μ,νの入れ替わりが何回生じるかで分類される.μν型の論理式でもνμ型の論理式でも表現されるクラスΔ2はμ型とν型の論理式の超限的な組合せによって表せることを示す論文を出版した.さらに,様相μ計算の階層の崩壊を認識論理学の視点で分析し,無知の形式化を行った.2. 様相μ計算の階層が様相の種類によってどう変わるかを,真理値評価ゲームを用いて調べた.3. 確率的モデル検査は,検査法や評価アルゴリムがランダム化されたもので,ここではBlackwellゲームの一種として扱う.代表者が開発したWKLoの超準的手法を用いて,確率アルゴリズムを逆数学的に分析する研究を進めた.4. 決定木において,クエリの最小コストを最大化する入力分布(固有分布)について,より一般な木構造に対して固有分布を調べて論文にまとめた.さらにはグラフ構造への一般化を検討している.5. 確率アルゴリズムの視点から確率的推論を捕捉する独自の研究を目指しながら,先行研究の成果を整理した.

    researchmap

  • nonclassical logics

      More details

    Grant type:Competitive

    researchmap

  • ラムダ計算

      More details

    Grant type:Competitive

    researchmap

  • 非古典論理

      More details

    Grant type:Competitive

    researchmap

  • lambda calculus

      More details

    Grant type:Competitive

    researchmap

▼display all