Rendered from the Eleventh Edition of Copi/Cohen, Introduction to Logic, the most respected introductory logic text on the market, Essentials of Logic is a truly concise version that presents a simplified introduction to the study of logic. Special to Essentials of Logic! Ease of access Content has been thoroughly rewritten without diminishing the authoritative accuracy and completeness. Hundreds of new exercises New, simplified, and contemporary exercises are included throughout the text together with numerous exercises from Copi's Eleventh Edition to challenge students and enrich their understanding. Dynamic examples Many illustrated to explicate key concepts and topics. Summary tables Helpful summaries for students have been added throughout the entire text. Fallacy groupings Discussion of fallacies is broken into three major groupings: fallacies of relevance, fallacies of ambiguity, and fallacies of presumption. Categorical syllogisms The text analyzes each of the 15 valid forms of syllogisms and explains which forms are valid. Modern symbolic logic Expanded treatment presents a more detailed account of the concept of logical equivalence.Copi, Irving M. is the author of 'Essentials of Logic', published 2003 under ISBN 9780130497970 and ISBN 0130497975.