This book presents a comprehensive analysis of Kant's justification of the categorical imperative. The book contests the standard interpretation of Kant's views by arguing that he never abandoned his view about this as expressed in his Groundwork. It is distinctive in the way in which it places Kant's argument in the context of his transcendental philosophy as a whole, which is essential to understand it as an argument from within human agential self-understanding. The book reviews that existing literature, then presents a logical construction of Kant's argument, which it defends by examining what Kant has to say about synthetic a priori practical propositions in the context of his transcendental philosophy as a whole, and by a detailed examination of how he presents his argument in the Second Critique and the Groundwork. Particular attention is given to the views of two scholars who share many of the views expressed in this book: Klaus Steigleder and Michael Wolff. Special attention is also given to the views of Owen Ware, who, while sharing many of our arguments has a very different overall view. The concluding chapter provides a statement about the validity of Kant's argument.

This series publishes outstanding monographs and edited volumes that investigate all aspects of Kant's philosophy, including its systematic relationship to other philosophical approaches, both past and present. Studies that appear in the series are distinguished by their innovative nature and ability to close lacunae in the research. In this way, the series is a venue for the latest findings in scholarship on Kant.

• Preface
• Contents
• Chapter One. Introduction – Setting the Scene
• Chapter Two. Kant’s Argument for the Categorical Imperative Constructed
• Chapter Three. A Priori Synthetic Practical Propositions as Strict Requirements of Human Agential Self-Understanding
• Chapter Four. Kant’s Justification in the Context of His Critical Philosophy as a Whole
• Chapter Five. The Moral Law as the Sole Fact of Pure Reason in CPrR
• Chapter Six. The Moral Law as the Sole Fact of Pure Reason in GMM
• Chapter Seven. Klaus Steigleder and Michael Wolff
• Chapter Eight. Owen Ware
• Chapter Nine. How Valid is Kant’s Argument?
• Bibliography
• Subject Index
• Persons Index