Deductive Logic

LOGIC is divided into two branches, namely— (1) Inductive, (2) Deductive.

Deductive Logic is an introductory textbook in formal logic. The book is divided into four parts covering (i) truth-functional logic, (ii) monadic quantifi- cation, (iii) polyadic quantification and (iv) names and identity, and there are exercises for all these topics at the end of the book.

SOME OF THE TOPICS ARE:

I. Of the Term as distinguished from other words,

II. Of the Division of Things,

III. Of the Divisions of Terms,

IV. Of the Law of Inverse Variation of Extension and Intension,

PART II. Of Propositions,

CHAP. I. Of the Proposition as distinguished from other Sentences,

II. Of the Copula,

III. Of the Divisions of Propositions,

IV. Of the Distribution of Terms,

V. Of the Quantification of the Predicate,

VI. Of the Heads of Predicables,

VII. Of Definition,

VIII. Of Division,

PART III. Of Inferences,

CHAP. I. Of Inferences in general,

II. Of Deductive Inferences,

III. Of Opposition,

IV. Of Conversion,

V. Of Permutation,

VI. Of Compound Forms of Immediate Inference,

VII. Of Other Forms of Immediate Inference,.

VIII. Of Mediate Inferences or Syllogisms,

IX. Of Mood and Figure,

X. Of the Canon of Reasoning,

XI. Of the General Rules of Syllogism,

XII. Of the Determination of the Legitimate Moods of Syllogism,

XIII. Of the Special Rules of the Four Figures,

XIV. Of the Determination of the Moods that are valid in the Four

Figures,

XV. Of the Special Canons of the Four Figures,

XVI. Of the Special Uses of the Four Figures,

XVII. Of the Syllogism with Three Figures,

XVIII. Of Reduction,

XIX. Of Immediate Inference as applied to Complex Propositions

XX. Of Complex Syllogisms,

XXI. Of the Reduction of the Partly Conjunctive Syllogism,

XXII. Of the Partly Conjunctive Syllogism regarded as all Immediate

Inference,

XXIII. Of the Disjunctive Syllogism,

XXIV. Of the Reduction of the Disjunctive Syllogism,

XXV. Of the Disjunctive Syllogism regarded as an Immediate

Inference,

XXVI. Of the Mixed Form of Complex Syllogism,

XXVII. Of the Reduction of the Dilemma

XXVIII. Of the Dilemma regarded as an Immediate Inference,.

XXIX. Of Trains of Reasoning,

XXX. Of Fallacies,

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