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Since philosophy is about defending and refuting claims, the need for sound reasoning cannot be over-emphasized. Logic is the branch of philosophy concerned with the study of arguments and their properties. In philosopher Robert Barnard’s words, logic “is the methodological core of all intellectual disciplines”. In mathematics, logical methods are used to proof theorems. Essentially, logic offers the basic principles and symbols of argumentation utilized by philosophers and other thinkers.

Logic: An Introduction, written by Innocent Ngangah and Duve Nakolisa, is a stimulating guide for scholars whose study requires theoretical knowledge and competent application of logical principles. As an introductory text, the book is fairly comprehensive. Its 11 chapters are grouped under three sections: basic logical terms (covering, among others, propositions, probability, definitions, and fallacies), theory of deduction (incorporating categorical propositions, categorical syllogisms, Venn diagrams, symbolization in propositional and predicate logic, proofs of validity using rules of inference, and logic of relations and modality), and theory of induction (including induction and analogy, causality and Mill’s methods).

Readers will love the authors’ presentation style and their refreshing inclination to illustrate certain key principles with examples drawn from familiar environments. To students of logic and everyone interested in logical thinking, this book will be of immense intellectual and practical relevance. No. of pages: 375.