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Proof theoretic analysis of cyclic proof systems

Research Project

Project/Area Number 18K11161
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 60010:Theory of informatics-related
Research InstitutionNagoya University

Principal Investigator

Nakazawa Koji  名古屋大学, 情報学研究科, 准教授 (80362581)

Co-Investigator(Kenkyū-buntansha) 木村 大輔  東邦大学, 理学部, 講師 (90455197)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords分離論理 / カット除去定理 / 循環証明 / シーケント計算 / カット除去 / 帰納的述語 / 証明論 / ソフトウェア検証
Outline of Final Research Achievements

We investigate proof theoretic properties of cyclic proof systems, and we obtain the following results. (1) We show that the cut-elimination fails in the cyclic proof system for the symbolic heap separation logic. (2) We show that the restriction of the cut rule to extended subformulas of the bottom sequent in that system properly changes the provability. (3) We show that the cut-elimination fails in the cyclic proof system for the bunched logic.

Academic Significance and Societal Importance of the Research Achievements

循環証明体系は,帰納的述語を含む論理式の妥当性判定のために有用であり,とくに分離論理の循環証明体系はプログラミング検証の分野への応用が期待される.証明探索においてカット規則を適用するためには発見的な手法が必要である.このため,カット除去定理は証明探索のために期待される性質である.本研究の結果は,完全な証明体系のためにはカット規則が必要であることを示すものであり,証明探索の実現のためにはある種の制限が必要であるという理論的限界を明らかにするものである.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (9 results)

All 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Failure of Cut-Elimination in Cyclic Proofs of Separation Logic2020

    • Author(s)
      KIMURA Daisuke、NAKAZAWA Koji、TERAUCHI Tachio、UNNO Hiroshi
    • Journal Title

      Computer Software

      Volume: 37 Issue: 1 Pages: 1_39-1_52

    • DOI

      10.11309/jssst.37.1_39

    • NAID

      130007815024

    • ISSN
      0289-6540
    • Year and Date
      2020-01-24
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Restriction on Cut in Cyclic Proof System for Symbolic Heaps2020

    • Author(s)
      Saotome Kenji、Nakazawa Koji、Kimura Daisuke
    • Journal Title

      FLOPS 2020, Lecture Notes in Computer Science

      Volume: 12073 Pages: 88-105

    • DOI

      10.1007/978-3-030-59025-3_6

    • ISBN
      9783030590246, 9783030590253
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Completeness of Cyclic Proofs for Symbolic Heaps with Inductive Definitions2019

    • Author(s)
      Tatsuta Makoto、Nakazawa Koji、Kimura Daisuke
    • Journal Title

      LNCS (APLAS 2019)

      Volume: 11893 Pages: 367-387

    • DOI

      10.1007/978-3-030-34175-6_19

    • ISBN
      9783030341749, 9783030341756
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 分離論理における記号ヒープのための循環証明体系におけるカットの制限について2020

    • Author(s)
      早乙女献自,中澤巧爾,木村大輔
    • Organizer
      第22回プログラミングおよびプログラミング言語ワークショップ(PPL2020)
    • Related Report
      2019 Research-status Report
  • [Presentation] Failure of cut-elimination in cyclic proofs of separation logic2019

    • Author(s)
      Daisuke Kimura, Koji Nakazawa, Tachio Terauchi, and Hiroshi Unno
    • Organizer
      第21回プログラミングおよびプログラミング言語ワークショップ (PPL2019)
    • Related Report
      2018 Research-status Report
  • [Presentation] Spatial factorization in cyclic-proof system for separation logic2019

    • Author(s)
      Koji Nakazawa, Makoto Tatsuta, and Daisuke Kimura
    • Organizer
      第21回プログラミングおよびプログラミング言語ワークショップ (PPL2019)
    • Related Report
      2018 Research-status Report
  • [Presentation] On cut elimination in cyclic-proof systems2019

    • Author(s)
      Koji Nakazawa, Daisuke Kimura, Tachio Terauchi, Hiroshi Unno, and Kenji Saotome
    • Organizer
      3rd Workshop on Mathamatical Logic and Its Applications (MLA 2019)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] プログラムの正しさを証明する---分離論理入門---2019

    • Author(s)
      中澤巧爾
    • Organizer
      日本数学会2019年度年会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 循環証明体系における準カット除去可能性について2019

    • Author(s)
      早乙女献自,中澤巧爾
    • Organizer
      第21回プログラミングおよびプログラミング言語ワークショップ (PPL2019)
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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