Explore the logic that shaped early modern reasoning and its modern echoes. This collection surveys key ideas from Boole, De Morgan, and Epicurus, showing how ideas about signs, sensation, and inference came together to form a practical theory of knowledge.

In these pages, readers encounter a mix of historical discussion and formal experimentation. From the Epicurean view of sensation as a test of truth to the development of algebraic and probabilistic methods, the essays illuminate how early logicians sought reliable ways to understand the world. The volume also features breakthroughs in logical notation and method, including new approaches to relative numbers and syllogistic reasoning.

• Clear introductions to how signs and words relate to things in Epicurean thought.


• Explanations of new notations and algebraic ideas that aim to simplify logical reasoning.


• Concrete examples of how logic ties into probability and inference.


• Historical notes on how these theories influenced later schools of thought.

Ideal for readers curious about the history of logic and its practical methods, as well as those interested in the evolution of mathematical reasoning.

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