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 ...

A hypermodality is a connective whose meaning depends on where in the formula it occurs. The paper motivates the notion and shows that hypermodal logics are much more expressive than traditional modal ...

The Journal of Philosophical Logic provides a forum for work at the crossroads of philosophy and logic, old and new, with contributions ranging from conceptual to technical. Accordingly, the Journal ...

An excellent introduction to logic (in all possible worlds), September 24, 2002, by Dr. Lee D. Carlson (Baltimore, Maryland USA) [Amazon.com] It is too bad this book is out of print, for the authors ...

This is a new introduction to logic for university undergraduates in their first and second years. The originality of the approach will also make it of considerable interest to postgraduates and ...

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 ...