Chapter IV: Book II: On Reasoning

Chapter I Of Inference, Or Reasoning, In General. Chapter II Of Ratiocination, Or Syllogism. Chapter III Of The Functions And Logical Value Of The Syllogism. Chapter IV Of Trains Of Reasoning, And Deductive Sciences. Chapter V Of Demonstration, And Necessary Truths. Chapter VI The Same Subject Continued. Chapter VII Examination Of Some Opinions Opposed To The Preceding Doctrines.