Abstract

Uygar Abaci's Kant's Revolutionary Theory of Modality starts with a helpful and illuminating historical contextualization of Kant's theory of modality. It sets out the ontotheological debates that form the backdrop of Kant's pre-Critical modal theorizing. Abaci covers the proofs of the existence of God by Anselm and Descartes, as well as Leibniz and Wolff. The first two start from the idea of God as the ens perfectissimum and then try to establish the existence of God by arguing that existence is a perfection. The last two, by contrast, consider God to be the ens necessarium, such that God exists necessarily, provided the concept of God is not self-contradictory; they then attempt to establish the possibility of...