First notions of logic (preparatory to the study of geometry)

First Notions of Logic by Augustus De Morgan introduces fundamental concepts of reasoning and inference as a preparatory study for geometry. De Morgan emphasizes the importance of logic in forming accurate arguments discussing propositions logical truths syllogisms and hypothetical reasoning. The book explores proving propositions indirect demonstration probability in arguments and the impact of probability on argument validity. It provides a comprehensive introduction to logical reasoning laying the groundwork for further studies in mathematics and philosophy.