Translator's Introduction
Text of Aristotle
Text of Aquinas
Text of Cajetan
BOOK I
Introduction
LESSON I The Order of This Treatise
LESSON II The Signification of Vocal Sound
LESSON III The Diverse Signification of Vocal Sound
LESSON IV The Name
LESSON V On the Nature of the Verb and Its Conformity with the Name
LESSON VI On Speech, the Formal Principle of the Enunciation
LESSON VII The Definition of Enunciation
LESSON VIII The Division of Enunciation into Simple and Composite, Affirmative and Negative
LESSON IX The Opposition of Affirmation and Negation Absolutely
LESSON X The Division of the Proposition on the Part of the Subject and the Opposition of Affirmation and Negation in Universal and in Indefinite Propositions
LESSON XI The Opposition of Universal and Particular Enunciations and the Relation of an Opposed Affirmation and Negation to Truth and Falsity
LESSON XII There Is Only One Negation Opposed to One Affirmation
LESSON XIII Truth and Falsity in Opposed Singular Propositions About the Future in Contingent Matter
LESSON XIV Contingency in Things and the Roots of Contingency in Relation to Singular Propositions About the Future in Contingent Matter
LESSON XV It Is Concluded that Propositions Are True as They Correspond to the Way in Which Things Are in Reality
BOOK II
LESSON I The Distinction and Order of Simple Enunciations in Which the Finite or the Infinite Is Posited Only on the Part of the Subject
LESSON II The Number and Relationship of Simple Enunciations in Which the Verb "Is" Is Predicated As a Third Element and the Subject Is the Finite Name Not Universally Taken
LESSON III The Number and Relationship of Enunciations in Which the Verb "Is" Is Predicated and the Subject Is the Finite Name Taken Universally, or the Infinite Name, and of Those in Which the Adjective Verb Is Predicated
LESSON IV Some Doubts About What Has Been Said Are Presented and Solved
LESSON V Ways in Which an Enunciation May Be Many Rather than One
LESSON VI Some Predicates Said Divisively of a Subject Can Be Said Conjointly, Others Not
LESSON VII Whether from an Enunciation Having Many Conjoined Predicates It Is Licit to Infer an Enunciation Which Contains the Same Predicates Divisively
LESSON VIII Modal Propositions and Their Opposition
LESSON IX In Contradictions of Modal Propositions the Negation Must Be Added to the Modes, Not to the Verb
LESSON X The Logical Consequents of the Modals
LESSON XI Whether "Possible To Be" Follows Upon "Necessary To Be"
LESSON XII The Explanation of Potencies that Are Called Such Equivocally and the Determination, Through the Notion of the Impossible, of the Possible that Follows Upon the Necessary
LESSON XIII Contrariety of Opinions in the Mind Is Constituted by an Opposition of the True and the False
LESSON XIV The Opposition of True and False that Constitutes Contrariety of Opinions Is Opposition According to Affirmation and Negation of the Same Predicate of the Same Subject