A purely combinatorial approach to deontic logic

Frédéric Sart


In this paper I revisit the foundations of deontic logic. This results in a truth-table way of looking at the deontic modality. Going back to Frege, I define a semantics for deontic logic on the basis of four primitive terms — (the) True, (the) False, (the) Permitted, (the) Forbidden — without introducing an accessibility relation.

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