We consider extending the modal logic KD45, commonly taken as the baseline system for belief, with propositional quantifiers that can be used to formalize natural language sentences such as ...

This is a preview. Log in through your library . Abstract We construct an extension $\scr{L}^{P}$ of the standard language $\scr{L}$ of classical propositional logic by adjoining to the alphabet of ...

Logic is among the oldest and most foundational of the university disciplines. The goal is to equip students with most general possible framework for sound and rigorous reasoning — one that works ...