Chapter I: Preface: To the Second Edition

The author's aim has been to produce such a condensation of the original work as may recall its contents to those who have read it, and may serve those who are now reading it in the place of a full body of marginal notes. Mr. Mill's conclusions on the true province and method of Logic have a high substantive value, independent even of the arguments and illustrations by which they are supported; and these conclusions may be adequately, and, it is believed, with much practical utility, embodied in an epitome. The processes of reasoning on which they depend, can, on the other hand, be represented in outline only. But it is hoped that the substance of every paragraph, necessary for the due comprehension of the several steps by which the results have been reached, will be here found at all events suggested.

The author may be allowed to add, that Mr. Mill, before publication, expressed a favourable opinion of the manner in which the work had been executed. Without such commendation the volume would hardly have been offered to the public.

LONDON: _Dec. 21, 1865_.

CONTENTS.
PAGE

INTRODUCTION 1

BOOK I.

NAMES AND PROPOSITIONS.

CHAP.

I. On the Necessity of commencing with an Analysis of
Language in Logic 3

II. Names 3

III. The Things denoted by Names 7

IV. Propositions 17

V. The Import of Propositions 19

VI. Propositions merely Verbal 24

VII. The Nature of Classification, and the Five Predicables 26

VIII. Definition 30

BOOK II.

REASONING.

I. Inference, or Reasoning in General 35

II. Ratiocination, or Syllogism 36

III. The Functions and Logical Value of the Syllogism 39

IV. Trains of Reasoning, and Deductive Sciences 43

V. & VI. Demonstration and Necessary Truths 46