"Anselm of Canterbury gave the first modal "ontological" argument for God's existence. Yet, despite its distinct originality, philosophers have mostly avoided the question of what modal concepts the argument uses, and whether Anselm's metaphysics entitles him to use them. Here, Brian Leftow sets out Anselm's modal metaphysics. He argues that Anselm has an "absolute", "broadly logical", or "metaphysical" modal concept, and that his metaphysics provides acceptable truth makers for claims in this modality. He shows that his modal argument is committed (in effect) to the Brouwer system of modal logic, and defends the claim that Brouwer is part of the logic of "absolute" or "metaphysical" modality. He also defends Anselm's premise that God would exist with absolute necessity against all extant objections, providing new arguments in support of it and ultimately defending all but one premise of Anselm's best argument for God's existence"--

Some commentators claim that Anselm’s writings contain a second independent “modal ontological argument” for God’s existence. A. D. Smith contends that although there is a second a priori argument in Anselm, it is not the modal argument. This “other argument” bears a striking resemblance to one that Duns Scotus would later employ.

In recent years, the ontological argument and theistic metaphysics have been criticised by philosophers working in both the analytic and continental traditions. Responses to these criticisms have primarily come from philosophers who make use of the traditional, and problematic, concept of God. In this volume, Daniel A. Dombrowski defends the ontological argument against its contemporary critics, but he does so by using a neoclassical or process concept of God, thereby strengthening the case for a contemporary theistic metaphysics. Relying on the thought of Charles Hartshorne, he builds on Hartshorne's crucial distinction between divine existence and divine actuality, which enables neoclassical defenders of the ontological argument to avoid the familiar criticism that the argument moves illegitimately from an abstract concept to concrete reality. His argument, thus, avoids the problems inherent in the traditional concept of God as static.

This book re-examines Anselm’s famous arguments for the existence of God in his Proslogion, and in his Reply. It demonstrates how he validly deduces from plausible premises that God so truly exists that He could not be thought not to exist. Most commentators, ancient and modern, wrongly located his argument in a passage which is not about God at all. It becomes evident that, consequently, much contemporary criticism is based on misreading and misunderstanding his text. It reconstructs his reasoning through three distinct but logically connected stages. It shows that, even if Anselm’s crucial premises are sceptically interpreted, his conclusions still follow. Properly understood, this argument is not vulnerable to the standard criticisms, including Gaunilo’s ‘Lost island’ counter-example.

Publisher Description

Anselm’s Proslogion has sparked controversy from the time it was written (c.1077) to the present day. Attempts to provide definitive accounts of its argument have led to a wide and contradictory variety of interpretations. In this book, Ian Logan goes back to basics, to the Latin text of the Proslogion with an original parallel English translation, before tracing the twists and turns of this controversy. Helping us to understand how the same argument came to be regarded as based on reason alone by some and on faith alone by others, as a logically sound demonstration by its supporters and as fatally flawed by its opponents, Logan considers what Anselm is setting out to do in the Proslogion, how his argument works, and whether it is successful.

This volume presents fourteen of William E. Mann's essays on three prominent figures in late Patristic and early medieval philosophy: Augustine, Anselm, and Peter Abelard. The essays explore some of the quandaries, arguments, and theories presented in their writings. The essays in this volume complement those to be found in Mann's God, Modality, and Morality (OUP, 2015). While the essays in God, Modality, and Morality are primarily essays in philosophical theology, those found in the present volume are more varied. Some still deal with issues in philosophical theology. Other essays are aporetic in nature, discussing cases of philosophical perplexity, sometimes but not always leaving the cases unresolved. All the essays display, directly or indirectly, the philosophical influence that Augustine has had. His Confessions is a rich source for philosophical puzzlement. Individual essays examine his reflections on the alleged innocence of infants, which raises questions about cognitive, emotional, and linguistic development; his juvenile theft of pears and its relation to moral motivation; and his struggle with and resolution of the problem of evil. One essay presents the rudiments of an Augustinian moral theory, rooted in his understanding of the Sermon on the Mount. Another essay illustrates the theory by discussing his writings on lying. Mann argues that Abelard amplified Augustine's moral theory by emphasizing the crucial role that intention plays in wrongdoing. Augustine bequeathed to Anselm the notion of "faith seeking understanding." Mann argues that this methodological slogan shapes Anselm's "ontological argument" for God's existence and his efforts to explicate the doctrine of the Trinity.

Anselm's ontological argument is one of the most fascinating, most controversial, and most misunderstood arguments in the entire history of Western thought. By centring the argument firmly in the Neoplatonic tradition within which Anselm was writing, Understanding Anselm's Ontological Argument sheds fresh light and clarity on this enigmatic piece of philosophy. It argues that, far from resting upon a fallacy or illegitimately attempting to define God into existence, Anselm's argument is a powerful and plausible philosophical proof, and deserves to be taken seriously as such. Written to be understandable for specialists and non-specialists alike, Understanding Anselm's Ontological Argument is ideal for scholars and researchers in philosophy of religion and philosophy in the Middle Ages (especially Neoplatonism) as well as for medievalists in general.