Introduction to Logic

Unlocking Logic: A Foundation for Deductive Reasoning

First published in 1936, this classic work presents a clear picture of powerful trends in modern logic to the educated lay reader. The goal: to create a unified conceptual apparatus as a basis for human knowledge.

This book perfects and sharpens the deductive method, an indispensable tool for deriving conclusions from assumptions. Revised for use as a college text, it provides:

Part One: Elements …