CONTENTS. 



INTRODUCTION. 



PAGE 



§ 1. A definition at the commencement of a sub- 

 ject must be provisional. 17 



2. Is logic the art and science of reasoning ?. 17 



3. Or the art and science of the pursuit of 



truth ? 18 



■"s^^i. Logic is concerned with inferences, not 



with intuitive truths 19 



6. Relation of logic to the other sciences. 21 



C. Its utility, how shown 22 



7. Definition of logic stated and illustrated.. 23 



BOOK I. 

 OF NAMES AND PROPOSITIONS. 



CuAPTER I. Of the. NeceHsity of commencing ivith an 

 Analysis of Language. 



5 1. Theory of names, why a necessary part of 



logic 26 



2. First step in the analysis of Propositions. . 27 



3. Names must be studied before Things 23 



CnAPTEK II. Of Names. 



51. Names are names of things, not of our ideas 29 



2. Words which are not names, but parts of 



names 30 



3. General and Singular names 32 



4. Concrete and Abstract 33 



5. Connotative and Non-connotative 34 



6. Positive and Negative 41 



7. Relative and Absolute 42 



8. Univocal and ^Equivocal 44 



Chapter III. Of the Things denoted by Names. 

 51. Necessity of an enumeration of Namable 



Things. The Categories of Aristotle 45 



2. Ambiguity of the most general names 46 



3. Feelings, or states of consciousness 48 



4. Feelings must be distinguished from their 



physical antecedents. Perceptions, what. 49 



5. Volitions, and Actions, what 51 



6. Substance and Attribute 51 



7. Body 62 



8. Mind 56 



9. Qualities 67 



10. Relations 69 



11. Resemblance 60 



12. Quantity 62 



13. All attributes of bodies are grounded on 



states of consciousness 63 



14. So also all attributes of mind 64 



16. Recapitulation C4 



PAGE 



Chapter IV. Of Propositions. 



§ 1. Nature and office of the copula 60 



2. Affirmative and Negative propositions. ... 67 



3. Simple and Complex 69 



4. Universal, Particular, and Singular. 71 



Chapter V. 0/ the Import of Propositions. 

 5 1. Doctrine that a proposition is the expres- 

 sion of a relation between two ideas 73 



2. — that it is the expression of a relation be- 



tween the meanings of two names 75 



3. — that it consists in referring something 



to, or excluding something from, a class. 77 



4. What it really is 80 



6. It asserts (or denies) a sequence, a co-exist- 

 ence, a simple existence, a causation 81 



6. — or a resemblance 83 



7. Propositions of which the terms are ab- 



stract 86 



Chapter VI. Of Propositions merely Verbal. 

 § 1. Essential and Accidental propositions 88 



2. All essential propositions are identical 



propositions 89 



3. Individuals have no essences 91- "" 



4. Real propositions, how distinguished from 



verbal 92 



5. Two modes of representing the impart of 



a Real proposition 93 



Chapter VII. Of the Nature of Classification, and 

 the Five Predicables. 



§1. Classification, how connected with Naming 94 



2. The Predicables, what 95 



3. Genus and Species 95 



4. Kinds have a real existence in nature 97 



5. Differentia 100 



C. Differentise for general purposes, and differ- 

 entiae for special or technical purposes. . . 101 



7. Proprium 103 



8. Accidens 104 



Chapter VIII. Of Definition. 

 § 1. A definition, what 105 



2. Every name can be defined, whose meaning 



is susceptible of analysis 106 



3. Complete, how distinguished from incom- 



plete definitions 107 



4. — and from descriptions 108 



5. What are called definitions of Things, are 



(definitions of Names with an implied as- \„^ 

 sumption of the existence of Things cor- 

 responding to them Ill 



6. — even when such things do not in reality 



exist 116 



