Paraconsistent games and the limits of rational self-interest

A. Daynes, Panos Andrikopoulos, P. Pagas, D. Latimer

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It is shown that logical contradictions are derivable from natural translations into first order logic of the description and background assumptions of the Soros Game, and of other games and social contexts that exhibit conflict and reflexivity. The logical structure of these contexts is analysed using proof-theoretic and model-theoretic techniques of first order paraconsistent logic. It is shown that all the contradictions that arise contain the knowledge operator K. Thus, the contradictions do not refer purely to material objects, and do not imply the existence of inconsistent, concrete, physical objects, or the inconsistency of direct sensory experience. However, the decision-making of rational self-interested agents is stymied by the appearance of such intensional contradictions. Replacing the rational self-interest axioms with axioms for an appropriate moral framework removes the inconsistencies. Rational moral choice in conflict-reflexive social contexts then becomes possible.
Original languageEnglish
Article number3
JournalThe Australasian Journal of Logic
Issue number1
Publication statusPublished - 4 Jan 2015


  • paraconsistent logic
  • Soros game
  • rational self-interest
  • Prisoner's Dilema
  • game theory
  • evolutionary game theory


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