, Volume 11, Issue 2-3, pp 125-165

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

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Abstract

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.