Modal Logic: An Introduction to its Syntax and Semantics
"This is a recommendable book in modal logic, written from a broad perspective...well suited for readers who are interested in understanding how logic affects the formatting of certain philosophical theses related to modalities."--Walter Carnielli,Mathematical Reviews"This is a recommendable book in modal logic, written from a broad perspective. Well suited for readers who are interested in understanding how logic affects the formatting of certain philosophical theses related to modalities."--Mathematical Reviews