Whether Trinitarianism is coherent depends not only on whether some account of the Trinity is coherent, but on which accounts of the Trinity count as "Trinitarian." After all, Arianism and Modalism are both accounts of the Trinity, but neither counts as Trinitarian (which is why defenses of Arianism or Modalism don’t count as defenses of Trinitarianism). This raises the question, if not just any account of the Trinity counts as Trinitarian, which do? Dale Tuggy is one of very few philosophers (...) to give explicit definitions of Trinitarian (versus Unitarian) theology. But they are no mere formalities. They are essential to his central criticisms of both historical and contemporary forms of Trinitarianism. In this paper, I offer my own definitions of Trinitarian and Unitarian theology, contrast them with Tuggy’s, and argue for the superiority of my definitions to Tuggy’s. If Trinitarianism and Unitarianism are what Tuggy says they are, the outlook for Trinitarianism is bleak indeed. If they are what I say they are, Tuggy’s central objection to Trinitarianism fails. To show what is at stake in these pairs of definitions, I examine a doctrine much neglected in Analytic Theology, but central to Nicene Trinitarianism—the Monarchy of the Father. (shrink)

Analytic theologians have proposed numerous “solutions” to the Logical Problem of the Trinity (LPT), mostly versions of Social Trinitarianism (ST) and Relative Identity Trinitarianism (RI). Both types of solution are controversial, but many hold out hope that further “Trinitarian theorizing” may yield some as yet unimagined, and somehow importantly different, solution to the LPT. I first give a precise definition of the LPT and of what would count as a solution to it. I then show how, though there are infinitely (...) many possible solutions, all solutions can be grouped together into a finite, exhaustive taxonomy, based precisely on those features which make them either controversial, heretical, or inconsistent. The taxonomy reveals why ST and RI have been the major proposed solutions, and also proves that there can be no importantly different, new solutions to the LPT. (shrink)

Analytic theology has sometimes been criticized as ahistorical. But what this means, and why it is problematic, have often been left unclear. This essay explicates and supports one way of making that charge while simultaneously showing this ahistoricity, although widespread within analytic theology, is not essential to it. Specifically, some analytic theologians treat problematic doctrines as metaphysical puzzles, constructing speculative accounts of phenomena such as the Trinity or Incarnation and taking the theoretical virtues of such accounts to be sufficient in (...) themselves to defend traditional doctrines with no need for additional, historical premises. But due to the different epistemic structures of metaphysical and theological puzzles, I argue that importing this methodology into philosophical theology results in invalid or question-begging arguments, and it is unclear how a virtue-centric methodology could be repaired without collapsing into a more historical methodology, which some of the best (but unfortunately not all) analytic theologians follow. (shrink)

Beau Branson rounds out the previous two chapters, by exploring the doctrine of inseparable operations ad extra in the writings of St Gregory of Nyssa. This doctrine says that all the activities of the three hypostases of the Trinity, at least insofar as they relate to things outside of (“ad extra”) the Trinity, are not only qualitatively identical but numerically identical. Importantly, Branson focuses his attention on Gregory’s theory of action and the individuation of events that emerges from his theological (...) defense of the doctrine of inseparable operations ad extra. Through a heavy engagement with contemporary metaphysics, Branson shows that Gregory’s philosophy of action is not only coherent, anticipating current trends in the ontology of actions and events, but may provide novel solutions to longstanding problems in this field. (shrink)

The doctrine of the Trinity is central to mainstream Christianity. But insofar as it posits “three persons” (Father, Son and Holy Spirit), who are “one God,” it appears as inconsistent as the claim that 1+1+1=1. -/- Much of the literature on “The Logical Problem of the Trinity,” as this has been called, attacks or defends Trinitarianism with little regard to the fourth century theological controversies and the late Hellenistic and early Medieval philosophical background in which it took shape. I argue (...) that this methodol- ogy, which I call “the Puzzle Approach,” produces obviously invalid arguments, and it is unclear how to repair it without collapsing into my preferred method- ology, “the Historical Approach,” which sees history as essential to the debate. I also discuss “mysterianism,” arguing that, successful or not, it has a different goal from the other approaches. I further argue that any solution from the His- torical Approach satisfies the concerns of the Puzzle Approach and mysterianism anyway. -/- I then examine the solution to the Logical Problem of the Trinity found in St. Gregory of Nyssa’s writings, both due to his place in the history of the doctrine, and his clarity in explicating what I call “the metaphysics of synergy.” I recast his solution in standard predicate logic and provide a formal proof of its consistency. I end by considering the possibilities for attacking the broader philosophical context of his defense and conclude that the prospects for doing so are dim. In any case, if there should turn out to be any problem with the doctrine of the Trinity at all, it will not be one of mere logical inconsistency in saying that “These Three are One.”. (shrink)

Philosophers have gotten something of a bad reputation for widespread—and perhaps closed-minded—atheism. The reality, however, is quite otherwise. For most of their history, philosophy and religion have been intertwined in one way or another, and the vast majority of philosophers have had some kind of religious beliefs, oftentimes central to their philosophy, whether or not they have made the links explicit. This is not without good reason. Though their methods (sometimes) differ, philosophy and religion have always shared a number of (...) similar goals in terms of seeking answers to life’s “Big Questions,” questions about the ultimate nature of reality, our purpose or place in the world, the meaning of life and how we should live it. This chapter addresses philosophy's reputation of closed-mindedness towards the end, but first it addresses the historical point. (shrink)

Where did the universe come from? Is life a result of chance, or design? If God is loving and all-powerful, why does evil still exist? Is religious belief just a byproduct of undirected evolutionary processes? Or did God make sure humans would evolve in such a way as to believe? Are philosophers closed-minded about religion? And why is so much of philosophy of religion about God-but not about gods? Introduction to Philosophy: Philosophy of Religion introduces students to some of the (...) major traditional arguments for and against the existence of God. It also includes discussions of some less well-known, but thought-provoking arguments for the existence of God, and one of the most important new challenges to religious belief from the Cognitive Science of Religion. An introductory chapter traces the deep interconnections between philosophy and religion throughout Western history, and a final chapter considers what place there is for non-Western and non-monotheistic religions within contemporary philosophy of religion. Whatever your religious beliefs-or lack of beliefs-we think you will find many of the arguments in this book fascinating to think about, and useful starting points for deeper philosophical discussions. (shrink)