Introduction to Logic (3rd ed.)

Introduction to Logic is clear and concise, uses interesting examples (many philosophical in nature), and has easy-to-use proof methods. Its key features, retained in this Third Edition, include: simpler ways to test arguments, including an innovative proof method and the star test for syllogisms; a wide scope of materials, suiting it for introductory or intermediate courses; engaging examples, from philosophy and everyday life; useful for self-study and preparation for standardized tests, like the LSAT; a reasonable price (a third the cost of some competitors); and exercises that correspond to the free LogiCola instructional program. This Third Edition: improves explanations, especially on areas that students find difficult; has a fuller explanation of traditional Copi proofs and of truth trees; and updates the companion LogiCola software, which now is touch friendly (for use on Windows tablets and touch monitors), installs more easily on Windows and Macintosh, and adds exercises on Copi proofs and on truth trees. You can still install LogiCola for free (from http://www.harryhiker.com/lc or http://www.routledge.com/cw/gensler). Introduction. Logic ; Valid Arguments ; Sound Arguments ; The Plan Of This Book -- Part One. Syllogistic, Informal, And Inductive Logic. Syllogistic Logic ; Meaning And Definitions ; Fallacies And Argumentation ; Inductive Reasoning -- Part Two. Classical Symbolic Logic. Basic Propositional Logic ; Propositional Proofs ; Basic Quantificational Logic ; Relations And Identity -- Part Three. Advanced Symbolic Systems. Basic Modal Logic ; Further Modal Systems ; Deontic And Imperative Logic ; Belief Logic ' A Formalized Ethical Theory -- Part Four. Further Vistas. Metalogic ; History Of Logic ; Deviant Logics ; Philosophy Of Logic. Harry J. Gensler. Includes Bibliographical References And Index. Harry Gensler engages the reader with the basics of logic through practical examples and important arguments in the history of philosophy and from contemporary philosophy