This is a preview. Log in through your library . Abstract Jaśkowski's discussive logic D₂ was formulated with the help of the modal logic S5 as follows (see [7, 8]): A ∊ D₂ iff ┌ A ┐ ∊ S5, where (-) ...

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 ...

Dynamic logic offers a formal framework to reason about actions, transitions and the evolution of systems over time. It extends classical modal logic by incorporating operators that capture state ...

This is a preview. Log in through your library . Abstract We consider a formal language whose logical syntax involves both modal and tense propositional operators, as well as sortal quantifiers, ...

SUMMARY: At the beginning of the 20th century, philosophical thought was transformed by the discovery of the "new logic", i.e. mathematical or symbolic logic. With this novum organum, philosophers ...