This book is made up of an introductory chapter, ten historical/philosophical chapters on Frege, and four postscripts to the chapters. The topics are divided into the three areas of the book's title: (1) Frege's work on truth, which includes his revolutionary insights into linguistic and cognitive structure, into the nature of truth conditions, and into philosophical method in using logic to frame and clarify philosophical problems; (2) his work on cognition, which uses linguistic structure not as a focus but as a starting point; and (3) his defense and development of knowledge based on reason ... More

This book is made up of an introductory chapter, ten historical/philosophical chapters on Frege, and four postscripts to the chapters. The topics are divided into the three areas of the book's title: (1) Frege's work on truth, which includes his revolutionary insights into linguistic and cognitive structure, into the nature of truth conditions, and into philosophical method in using logic to frame and clarify philosophical problems; (2) his work on cognition, which uses linguistic structure not as a focus but as a starting point; and (3) his defense and development of knowledge based on reason, principally knowledge in logic and mathematics.