While for a long time the study of medieval logic focused on editorial
projects and reconstructions of central medieval doctrines such as the
theories of signification, supposition, consequences, and obligations,
nowadays the spectrum of analysis has broadened and is increasingly
informed by modern logical research, whose perspective is then applied
to medieval logic. Promoting this tendency, logicians and researchers
concerned with semantics in the Gesellschaft für Philosophie des
Mittelalters und der Renaissance (GPMR) founded a working group
bringing together medieval logic and modern applied logic. The present
volume is a seminal document of these interests and activities. It
analyzes theories in medieval logic which are useful for solving
questions of recent logic and explains crucial parts of medieval logic,
philosophy, and theology by applying techniques of present-day logic.