Logic as a Preventive of Error or Fallacy--The Inner Sophist, 17 III. The Axioms of Dialectic and of Syllogism, 29 BOOK I. THE LOGIC OF CONSISTENCY--SYLLOGISM AND DEFINITION. PART I. THE ELEMENTS OF PROPOSITIONS. CHAPTER I. General Names and Allied Distinctions, 43 CHAPTER II. The Syllogistic Analysis of Proposition, into Terms. (1) The Bare Analytic Forms. (2) The Practice of Syllogistic Analysis. (3) Some Technical Difficulties, 62 PART II. DEFINITION. CHAPTER I. (1) Imperfect Understanding of Words. (2) Verification of the Meaning--Dialectic. (3) Fixation of the Meaning--Division or Classification, Definition, Naming, 82 CHAPTER II. The Five Predicables--Verbal and Real Predication, 105 CHAPTER III. Aristotle's Categories, 112 CHAPTER IV. The Controversy about Universals--Difficulties concerning the Relation of General Names to Thought and to Reality, 120 PART III. THE INTERPRETATION OF PROPOSITIONS. CHAPTER I. Theories of Predication--Theories of Judgment, 131 CHAPTER II. The "Opposition" of Propositions--The Interpretation of "No," 139 CHAPTER III. The Implication of Propositions--Immediate Formal Inference --Eduction, 146 CHAPTER IV. The Counter-Implication of Propositions, 156 PART IV. THE INTERDEPENDENCE OF PROPOSITIONS. CHAPTER I. The Syllogism, 167 CHAPTER II. The Figures and Moods of the Syllogism. (1) The First Figure. (2) The Minor Figures and their Reduction to the First. (3) Sorites, 173 CHAPTER III. The Demonstration of the Syllogistic Moods--The Canons of the Syllogism, 185 CHAPTER IV. The Analysis of Arguments into Syllogistic Forms, 196 CHAPTER V. Enthymemes, 205 CHAPTER VI. The Utility of the Syllogism, 209 CHAPTER VII. Conditional Arguments--Hypothetical Syllogism, Disjunctive Syllogism and Dilemma, 215 CHAPTER VIII. Fallacies in Deductive Argument--_Petitio Principii_ and _Ignoratio Elenchi_, 226 CHAPTER IX. Formal or Aristotelian Induction--Inductive Argument--The Inductive Syllogism, 235 BOOK II. INDUCTIVE LOGIC, OR THE LOGIC OF SCIENCE. Introduction, 243 CHAPTER I.