Abstract
The nine essays in this collection attempt to define the relationships between classical or scholastic logic and modern symbolic logic, and to apply the formal tools of logistic in the attempt to solve some of the problems with which the older logic had grappled. The first four chapters argue that there is no basic divergence between modern logistic and the classical logic; indeed, the formal parts of these chapters develop a proposed formal system of the categorical syllogism which can be interpreted as a special case of the class calculus. The final five chapters deal with a variety of logico-philosophical problems, including the paradox of the "liar," the logical analysis of existence, and, somewhat informally, the problem of universals. I. M. Bochénski is the author of five of the articles.--K. P. F.