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An Intuitionistic Investigation of Prerequisite-Effect Structure

  • Katsuhiko Sano
  • Shingo Hagiwara
  • Satoshi Tojo
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7258)

Abstract

This paper studies the prerequisite-effect structures in legal documents from a logical viewpoint. First, we distinguish a written prerequisite-effect structure in legal documents and an application-instance of the written structure to a particular case, and formalize the latter as \(\leadsto\). Second, we specify its semantics as ‘immediately after’ on intuitionistic Kripke model. Third, we establish semantic properties of \(\leadsto\) including the undefinability of \(\leadsto\) in intuitionistic logic, and provide a cut-free and complete labelled sequent calculus with the intuitionistic logic with \(\leadsto\). Finally, we illustrate a formal representation of Articles 7 and 9 of Japanese Income Tax Act with the help of \(\leadsto\).

Keywords

Intuitionistic Logic Kripke Model Legal Document Kripke Frame Adaptive Logic 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Katsuhiko Sano
    • 1
  • Shingo Hagiwara
    • 1
  • Satoshi Tojo
    • 1
  1. 1.School of Information ScienceJapan Advanced Institute of Science and TechnologyIshikawaJapan

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