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Workshop: AI meets Moral Philosophy and Moral Psychology: An Interdisciplinary Dialogue about Computational Ethics

#19: Modelling Moral Debate using Reason-based Abstract Argumentation Theory

Alex Jackson · Michael Luck · Elizabeth Black

Keywords: [ moral dilemmas ] [ Reasoning ] [ debate ] [ argumentation ]


Using an extended form of abstract argumentation, we model moral debate formally and define a game for computational ethics that involves human moral judgements. In general, the absence of universal criteria for assessing moral reasoning makes defining a formal representation of moral debate challenging. In this work, we unify John Broome’s concept of a ‘reason’ with argumentation theory, and demonstrate our formalism with a debate on trolley problem moral dilemmas.

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