Artificial Intelligence and Law

, Volume 11, Issue 2–3, pp 125–165 | Cite as

Towards a Formal Account of Reasoning about Evidence: Argumentation Schemes and Generalisations

  • Floris Bex
  • Henry Prakken
  • Chris Reed
  • Douglas Walton


This paper studies the modelling of legal reasoning about evidence within general theories of defeasible reasoning and argumentation. In particular, Wigmore's method for charting evidence and its use by modern legal evidence scholars is studied in order to give a formal underpinning in terms of logics for defeasible argumentation. Two notions turn out to be crucial, viz. argumentation schemes and empirical generalisations.


Artificial Intelligence General Theory Computational Linguistic Legal Aspect Argumentation Scheme 
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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Floris Bex
    • 1
  • Henry Prakken
    • 2
  • Chris Reed
    • 3
  • Douglas Walton
    • 4
  1. 1.Institute of Information and Computing SciencesUtrecht UniversityUtrechtThe Netherlands; E-mail:
  2. 2.Faculty of LawUniversity of GroningenGroningenThe Netherlands
  3. 3.Division of Applied ComputingUniversity of DundeeDundeeUK; E-mail:
  4. 4.Department of PhilosophyUniversity of WinnipegManitobaCanada

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