Unsurpassed for its clarity and comprehensiveness, A CONCISE INTRODUCTION TO LOGIC is the #1 introductory logic textbook on the market. In this 13th edition, Patrick Hurley and new co-author Lori Watson continue to build upon the tradition of a lucid, focused, and accessible presentation of logic, both formal and informal. The book's extensive, carefully sequenced exercises guide students toward greater proficiency with the skills they are learning. The range and volume of exercises allow self-pacing, enabling students who have greater difficulty to build skills slowly and methodically, and work up to more difficult problems. This edition includes an expanded array of technology supplements available through MindTap®, a highly robust online platform -- including a gradable interactive version of many of the book's exercises; Aplia™ online homework solution; Learning Logic multimedia tutorials; video clips covering difficult topics; and the complete text in e-book format.

Part I: INFORMAL LOGIC.
1. Basic Concepts.
Arguments, Premises, and Conclusions. Exercise. Recognizing Arguments. Exercise. Deduction and Induction. Exercise. Validity, Truth, Soundness, Strength, Cogency. Exercise. Argument Forms: Proving Invalidity. Exercise. Extended Arguments. Exercise.
2. Language: Meaning and Definition.
Varieties of Meaning. Exercise. The Intension and Extension of Terms. Exercise. Definitions and Their Purposes. Exercise. Definitional Techniques. Exercise. Criteria for Lexical Definitions. Exercise.
3. Informal Fallacies.
Fallacies in General. Exercise. Fallacies of Relevance. Exercise. Fallacies of Weak Induction. Exercise. Fallacies of Presumption, Ambiguity, and Illicit Transference. Exercise. Fallacies in Ordinary Language. Exercise.
Part II: FORMAL LOGIC.
4. Categorical Propositions.
The Components of Categorical Propositions. Exercise. Quality, Quantity, and Distribution. Exercise. Venn Diagrams and the Modern Square of Opposition. Exercise. Conversion, Obversion, and Contraposition. Exercise. The Traditional Square of Opposition. Exercise. Venn Diagrams and the Traditional Standpoint. Exercise. Translating Ordinary Language Statements into Categorical Form. Exercise.
5. Categorical Syllogisms.
Standard Form, Mood, and Figure. Exercise. Venn Diagrams. Exercise. Rules and Fallacies. Exercise. Reducing the Number of Terms. Exercise. Ordinary Language Arguments. Exercise. Enthymemes. Exercise. Sorites. Exercise.
6. Propositional Logic.
Symbols and Translation. Exercise. Truth Functions. Exercise. Truth Tables for Propositions. Exercise. Truth Tables for Arguments. Exercise. Indirect Truth Tables. Exercise. Argument Forms and Fallacies. Exercise.
7. Natural Deduction in Propositional Logic.
Rules of Implication I. Exercise. Rules of Implication II. Exercise. Rules of Replacement I. Exercise. Rules of Replacement II. Exercise. Conditional Proof. Exercise. Indirect Proof. Exercise. Proving Logical Truths. Exercise.
8. Predicate Logic
Symbols and Translation. Exercise. Using the Rules of Inference. Exercise. Quantifier Negation Rule. Exercise. Conditional and Indirect Proof. Exercise. Proving Invalidity. Exercise. Relational Predicates and Overlapping Quantifiers. Exercise. Identity. Exercise.
Part III: INDUCTIVE LOGIC.
9. Analogy and Legal and Moral Reasoning.
Analogical Reasoning. Legal Reasoning. Moral Reasoning. Exercise.
10. Causality and Mill''s Methods.
"Cause" and Necessary and Sufficient Conditions. Mill''s Five Methods. Mill''s Methods and Science. Exercise.
11. Probability.
Theories of Probability. The Probability Calculus. Exercise.
12. Statistical Reasoning.
Evaluating Statistics. Samples. The Meaning of "Average." Dispersion. Graphs and Pictograms. Percentages. Exercise.
13. Hypothetical/Scientific Reasoning.
The Hypothetical Method. Hypothetical Reasoning: Four Examples from Science. The Proof of Hypotheses. The Tentative Acceptance of Hypotheses. Exercise.
14. Science and Superstition.
Distinguishing Between Science and Superstition. Evidentiary Support. Objectivity. Integrity. Concluding Remarks. Exercise.
Answers to Selected Exercises.
Glossary/Index.

Brief "How Logical Are You? Selections Open Chapters 9-14 And Present A Question Or Problem That Relates To The Content That Follows. They Get The Students Thinking About The Topic Of The Pertinent Section Before They Start Reading It And Ask Them To Answer A Question. The Instructor Can Use These Selections As Springboards For That Day'S Lecture Or To Initiate Class Discussion. They Replace The "Previews" Of The Prior Edition.Every Set Of Exercises Now Contains A Writing Component -- An Activity To Engage Students' Creativity. They Usually Involve Creating Arguments Of Various Kinds, Disputes, Definitions, Fallacies, And Symbolized Expressions. Students Report That Years After They Have Graduated, The Subjects They Remember Best From Their Logic Course Are Exercises That Engaged Their Own Creativity.A "Why Study Logic?" Motivational Piece Appears After The Front Material. Among Other Things, It Compares The Study Of Logic To Going To The Gym For Your Brain. Instructors Report That The Greatest Challenge They Face In Teaching Logic Is Motivating The Students And Getting Them To Realize The Importance Of Studying Logic. This Piece Is One Of The Many Features Of The New Edition That Addresses This Challenge."Boole, Venn, And Existential Import" Is A New Subsection In Chapter 4. It Addresses Student Questions About The Boolean Standpoint, Which Allows For Inferences About Nonexisting Things (Such As Unicorns) As Well As Existing Things. Students Often Ask About The Utility Of A Logic That Deals With Nonexisting Things. This Subsection Also Sketches The History Of The Boolean Standpoint In The Nineteenth Century.A New Way Of Visualizing Modus Ponens And The Other Rules Of Inference Has Been Added To Chapter 7 (Natural Deduction). This Technique Replaces The 'P' And 'Q' Of The Rules With Circles And Squares, And It Addresses The Needs Of Students Who Learn Best Through Visual Imagery. It Also Reinforces The Fact That Any Statement Can Be Uniformly Substituted In Place Of The Circles And Squares To Produce A Valid Inference.Available In Mindtap®, "Living Logic" Walks Students Through A Scenario Relating To A Real-World Problem, Enabling Them To Apply The Skills They Learn In The Context Of A Practical Issue. It Engages Student Interest By Illustrating In A Step-By-Step Activity The Relevance Of Logic To Real Life.End-Of-Chapter Quizzes Are Available In An Interactive, Self-Grading Version.Annotated Answers Are Provided For Most Exercises In Chapters 1 And 3; These Answers Provide Students With Feedback And Enhance Their Learning By Helping Them Understand Why An Answer Is Correct.More Than 2,700 Carefully Sequenced Exercises Give Students Ample Practice And Help Them Move From Simple To Complex Logic Skills.Concise Explanations, Coupled With Clear Examples, Reinforce Learning And Provide Support In Completing Exercises.

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