Modal logic, an extension of classical logic, investigates the modes of truth such as necessity and possibility. Its development has been closely intertwined with advances in proof theory, a field ...

Tradition states that above the entrance to Plato’s Academy were inscribed the words, “Let no one ignorant of geometry enter here.” A student in the modal logic interim course studies how subjunctives ...

Logic is the study of reasoning. Alethic modal logic studies reasoning by using modalities of truth such as possibility, impossibility, and necessity. Because the premises and conclusions of the ...

There are two different modal logics: the logic T assuming contingency and the logic K = assuming logical determinism. In the paper, I show that the Aristotelian treatise On Interpretation (Περί ...

Kit Fine (Philos Perspect 8:1–16, 1994) famously objected against the idea that essence can be successfully analyzed in terms of de re necessity. In response, Iwant to explore a novel, interesting, ...

Alethic modal logic studies reasoning by using modalities of truth such as possibility, impossibility, and necessity. Because the premises and conclusions of the chains of emotional reasoning involved ...