This book argues that certain “material falsities” give rise to ideas with objective reality but no corresponding formal reality. In a letter, this book’s author defended one of its conclusions by appealing to three types of “primitive notions” and a Scholastic idea of heaviness. An objection by Pierre Gassendi, included in a set of “objections and replies” appended to this book, critiques how this book compares a chiliagon and a myriagon to distinguish imagination and pure intellect. Elisabeth of Bohemia pressed this book’s author on how its concepts (-5[1])of extended substance and (10[1])thinking substance interact. This book claims that “clear and distinct” ideas allowed its author to comprehend a piece of wax. (10[1])For 10 points, the evil demon appears in what book by René Descartes that follows Discourse on Method? (10[1]) ■END■