This book investigates the extent to which medieval logicians expanded upon Aristotelian frameworks, specifically regarding truth and validity conditions. Alexander Broadie, a scholar of medieval philosophy, utilizes the writings of prominent fourteenth-century thinkers to demonstrate the sophistication of scholastic logic. By analyzing the works of figures such as William Ockham and John Buridan, the author argues that many concepts often attributed to modern logic were already well-developed in the medieval period. The text serves as a bridge between historical scholasticism and contemporary analytical logic.

Experts recognize this work as a foundational text for understanding the technical rigor of scholastic logic. Readers frequently note the academic density of the prose, which requires a baseline familiarity with philosophical terminology to fully grasp the arguments presented.