This page introduces modal logic, which incorporates modalities like necessity and possibility to reason about various scenarios. It outlines key operators such as necessity (□) and possibility (◇), w...This page introduces modal logic, which incorporates modalities like necessity and possibility to reason about various scenarios. It outlines key operators such as necessity (□) and possibility (◇), with applications in philosophy, computer science, law, and AI. The text also covers axioms defining different modal systems (e.g., S5, S4), clarifying common misconceptions and providing exercises for practical understanding.
