Summary: Did He Jump or Was He Pushed?
Abductive Practical Reasoning
Floris BEX a,1
, Trevor BENCH-CAPON b
and Katie ATKINSON b
Faculty of Law, University of Groningen, The Netherlands.
Department of Computer Science, University of Liverpool, UK.
Abstract. In this paper we present an approach to abductive reasoning in law by
examining it in the context of an argumentation scheme for practical reasoning. We
present a particular scheme, based on an established scheme for practical reasoning,
that can be used to reason abductively about how an agent might have acted to reach
a particular scenario, and the motivations for doing so. Plausibility here depends on
a satisfactory explanation of why this particular agent followed these motivations in
the particular situation. The scheme is given a formal grounding in terms of Action-
based Alternating Transition Systems and we illustrate the approach with a running
Keywords. Argumentation Schemes, Abductive Reasoning, Practical Reasoning