This book is a unique contribution to the philosophy of religion. It offers a comprehensive discussion of one of the most famous arguments for the existence of God: the ontological argument. The author provides and analyses a critical taxonomy of those versions of the argument that have been advanced in recent philosophical literature, as well as of those historically important versions found in the work of St Anselm, Descartes, Leibniz, Hegel and others. A central thesis of the book is that (...) ontological arguments have no value in the debate between theists and atheists. There is a detailed review of the literature on the topic (separated from the main body of the text) and a very substantial bibliography, making this volume an indispensable resource for philosophers of religion and others interested in religious studies. (shrink)

Preface -- Introduction -- Preliminary matters -- Some big ideas -- Minimal theism and naturalism -- Standard theism and naturalism -- Conclusion.

This work is a companion to philosophy in Australia and New Zealand. It contains over two hundred entries on: Australasian philosophy departments; notable Australasian philosophers; significant events in the history of Australasian philosophy; and areas to which Australasian philosophers have made notable contributions.

_Reading Philosophy of Religion_ combines a diverse selection of classical and contemporary texts in philosophy of religion with insightful commentaries. Offers a unique presentation through a combination of text and interactive commentary Provides a mix of classic and contemporary texts, including some not anthologized elsewhere Includes writings from thinkers such as Aquinas, Boethius, Hume, Plantinga and Putnam Divided into sections which examine religious language, the existence of God, reason, argument and belief, divine properties, and religious pluralism.

v. 1. Public lectures on philosophy in Australia and New Zealand -- 2. Interviews with Australian and New Zealand philosophers.

Robert Koons has recently defended what he claims is a successful argument for the existence of a necessary first cause, and which he develops by taking “a new look” at traditional arguments from contingency. I argue that Koons’ argument is less than successful; in particular, I claim that his attempt to “shift the burden of proof” to non-theists amounts to nothing more than an ill-disguised begging of one of the central questions upon which theists and non-theists disagree. I also (...) argue that his interesting attempt to bridge (part of) the familiar gap between the claim that there is a necessary first cause and the claim that God exists is beset with numerous difficulties. (shrink)

Robert Koons claims that my previous critique of his “new” cosmological argument is vitiated by confusion about the nature of defeasible argumentation.In response, I claim that Koons misrepresents—and perhaps misunderstands—the nature of my objections to his “new” cosmological argument. The main claims which I defend are: (1) that the move from a non-defeasible to a defeasible causal principle makes absolutely no difference to the success of the cosmological argument in which it is contained; and (2) that, since it is (...) perfectly well understood that non-theists have many reasons for rejecting the defeasible causal principle, it is pointless to claim that the move to a defeasible principle brings about a shift in the “burden of proof”. (Since some people may have forgotten—or may choose to ignore—the fact that non-theists do have reasons for rejecting the defeasible causal principle, I also provide a discussion of a modest sample of these reasons.). (shrink)

In “On Oppy’s Objections to the Modal Perfection Argument,” Philo 8, 2, 2005, 123–30, Robert Maydole argues that his modal perfection argument—set out in his “The Modal Perfection Argument for a Supreme Being,” Philo 6, 2, 2003, 299–313—“remains arguably sound” in the face of the criticisms that I made of this argument in my “Maydole’s 2QS5 Argument,” Philo 7, 2, 2004, 203–11. I reply that Maydole is wrong: his argument is fatally flawed, and his attempts to avoid the (...) criticisms that I have made of his argument are to no avail. (shrink)

This paper is a reply to Robert Maydole’s “The Modal Perfection Argument for the Existence of a Supreme Being,” published in Philo 6, 2, 2003. I argue that Maydole’s Modal Perfection Argument fails, and that there is no evident way in which it can be repaired.

A discussion of the recent prominence of 'new atheism' and 'Christian nationalism' in the United States.

Some people -- including the present author -- have proposed and defended alternative restricted causal principles that block Robert Koons’s ’new’ cosmological argument without undermining the intuition that causation is very close to ubiquitous. In "Epistemological Foundations for the Cosmological Argument", Koons argues that any restricted causal principles that are insufficient for the purposes of his cosmological argument cause epistemological collapse into general scepticism. In this paper I argue, against Koons, that there is no reason to suppose that my (...) favourite restricted causal principle precipitates epistemological collapse into general scepticism. If we impose the ’same kinds’ of restrictions on causal epistemological principles and on principles of general causation, then we cannot be vulnerable to the kind of argument that Koons develops. (shrink)

This paper is an assessment of Robert Maydole's work on ontological arguments. (Bibliographical details are provided in the text.) I argue that Maydole's ontological arguments are unsuccessful.

This is a reply to a paper by Graham Oppy in the July, 1999 issue of this journal, “Koons’ Cosmological Argument.” Recent work in defeasible or nonmonotonic logic means that the cosmological argument can be cast in such a way that it does not presuppose that every contingent situation, without exception, has a cause. Instead, the burden of proof is shifted to the skeptic, who must produce positive reasons for thinking that the cosmos is an exception to the (...) defeasible law of causality. I show how Oppy’s critique can be turned into a plausible rebuttal of my argument. However, this rebuttal can be set aside when the original argument is supplemented by a plausible account of the nature of causal priority. Several independent lines of argument in support of this account are outlined. (shrink)

This is a reply to a paper by Graham Oppy in the July, 1999 issue of this journal, “Koons’ Cosmological Argument.” Recent work in defeasible or nonmonotonic logic means that the cosmological argument can be cast in such a way that it does not presuppose that every contingent situation, without exception, has a cause. Instead, the burden of proof is shifted to the skeptic, who must produce positive reasons for thinking that the cosmos is an exception to the (...) defeasible law of causality. I show how Oppy’s critique can be turned into a plausible rebuttal of my argument. However, this rebuttal can be set aside when the original argument is supplemented by a plausible account of the nature of causal priority. Several independent lines of argument in support of this account are outlined. (shrink)

This paper is a reply to Graham Oppy’s “Maydole’s 2QS5 Argument,” published in Philo 7, 2 (2004). I argue that he fails to refute myModal Perfection Argument for the existence of a Supreme Being, and that it remains arguably sound in the face of his alleged counterexamples and parodies.

This paper is a reply to Graham Oppy’s “Maydole’s 2QS5 Argument,” published in Philo 7, 2 (2004). I argue that he fails to refute myModal Perfection Argument for the existence of a Supreme Being, and that it remains arguably sound in the face of his alleged counterexamples and parodies.

Anarchism has not been well served by the academy, but if the books under review are any indication, perhaps things are changing. Alan Ritter's Anarchism: A Theoretical Analysis and Michael Taylor's Community, Anarchy and Liberty both make original contributions to anarchist theory, while David Miller's Anarchism constitutes a thorough and competent introduction to the subject. Ostensibly providing an analysis of classical anarchist theory as developed by Godwin, Proudhon, Bakunin and Kropotkin, Ritter has in fact achieved a modest conceptual breakthrough. Anarchism (...) has been traditionally conceived as the most uncompromising libertarian ideology, completely opposed to all limitations and constraints on human freedom. (shrink)

This paper, while neutral on questions about the minimality of truth, argues for the non-minimality of truth-aptness.

Sceptical theists--e.g., William Alston and Michael Bergmann--have claimed that considerations concerning human cognitive limitations are alone sufficient to undermine evidential arguments from evil. We argue that, if the considerations deployed by sceptical theists are sufficient to undermine evidential arguments from evil, then those considerations are also sufficient to undermine inferences that play a crucial role in ordinary moral reasoning. If cogent, our argument suffices to discredit sceptical theist responses to evidential arguments from evil.

This two volume works provides a comprehensive history of philosophy in Australia and New Zealand. Volume one provides a chronological history, with one chapter devoted to the early years in which idealism dominated Australasian philosophy, and then chapters that cover each of the decades from the second world war. Volume two provides a thematic history, with treatment of most of the major areas to which Australasian philosophers have made significant contributions.

This paper is a critique of Stephen Makin's ontological argument. To some extent, the argument of this paper is recapitulated in *Ontological Arguments and Belief in God* (CUP, 1996).

In this book, Graham Oppy examines arguments for and against the existence of God. He shows that none of these arguments is powerful enough to change the minds of reasonable participants in debates on the question of the existence of God. His conclusion is supported by detailed analyses of the arguments as well as by the development of a theory about the purpose of arguments and the criteria that should be used in judging whether or not arguments are (...) successful. Oppy discusses the work of a wide array of philosophers, including Anselm, Aquinas, Descartes, Locke, Leibniz, Kant, Hume and, more recently, Plantinga, Dembski, White, Dawkins, Bergman, Gale and Pruss. (shrink)

This article is a brief overview of major ontological arguments. The most noteworthy feature of this article is the statement of a new parody of the Anselmian and Cartesian arguments that is obviously immune to objections adverting to intrinsic minima and maxima.

This paper discusses the finite version of the two envelope paradox. (That is, we treat the paradox against the background assumption that there is only a finite amount of money in the world.).

This paper is a reply to a prior work by C. J. F. Williams in which he criticised David Kaplan's account of the contingent analytic. In this paper, I take myself to be defending Kaplan's views against Williams' attack.

This is a short introduction to ontological arguments. It begins with a brief characterization of ontological arguments that proceeds mainly by way of example. The rest of the discussion is given over to consideration of what looks like a very simple ontological argument. This consideration turns up many of the issues that arise when more complex ontological arguments are examined.

This paper is a reply to Stephen Makin's response to my previous criticism of his defense of a conceptual ontological argument. (All relevant bibliographical details are provided in this paper.).

This book is an exploration of philosophical questions about infinity. Graham Oppy examines how the infinite lurks everywhere, both in science and in our ordinary thoughts about the world. He also analyses the many puzzles and paradoxes that follow in the train of the infinite. Even simple notions, such as counting, adding and maximising present serious difficulties. Other topics examined include the nature of space and time, infinities in physical science, infinities in theories of probability and decision, the (...) nature of part/whole relations, mathematical theories of the infinite, and infinite regression and principles of sufficient reason. (shrink)

Each author first presents his own side, and then they interact through two rounds of objections and replies. Pedagogical features include standard form arguments, section summaries, bolded key terms and principles, a glossary, and annotated reading lists.

Feser (2017) presents and defends five proofs of the existence of God. Each proof is in two stages: the first stage proves the existence of something which, in the second stage, is shown to possess an appropriate range of divine attributes. Each proof is given two presentations, one informal and one formal. In this paper, I critically examine two premises from one of Feser's five first stage proofs. I provide reasons for thinking that naturalists reject both of these premises. In (...) my view, this enough to show that the proof fails: it fails to advance considerations that decide between theism and important competing positions. (shrink)

This book begins with a careful taxonomy of divine attributes. It continues with detailed examinations of: divine infinity; divine simplicity; divine perfection; divine necessity; omnipotence; omniscience; divine goodness; divine beauty; divine fundamentality; divine will; divine freedom; etc.

Nick Trakakis and Yujin Nagasawa criticise the argument in Almeida and Oppy . According to Trakakis and Nagasawa, we are mistaken in our claim that the sceptical theist response to evidential arguments from evil is unacceptable because it would undermine ordinary moral reasoning. In their view, there is no good reason to think that sceptical theism leads to an objectionable form of moral scepticism. We disagree. In this paper, we explain why we think that the argument of Nagasawa and (...) Trakakis fails to overthrow our objection to sceptical theism. (shrink)

Latest version of my SEP entry on ontological arguments, which first appeared in 1996. General discussion of ontological arguments. Includes a brief historical overview, a taxonomy of different kinds of ontological arguments, a brief survey of objections to the different kinds of ontological arguments identified in the taxonomy, and more extended discussions of Anselm's ontological argument (Proslogion 2), Godel's ontological argument, and Plantinga's ontological argument.

There has been a recent explosion of interest in the epistemology of disagreement. Much of the recent literature is concerned with a particular range of puzzle cases (discussed in the Cases section of my paper). Almost all of the papers that contribute to that recent literature make mention of questions about religious disagreement in ways that suggest that there are interesting connections between those puzzle cases and real life cases of religious disagreement. One important aim of my paper is to (...) cast doubt on that suggestion. More generally, the aim of my paper is to give a reasonably full account of the recent literature on the epistemology of disagreement, and then to give a serious discussion of some of the epistemological issues that are raised by real world religious disagreements. (shrink)

In this paper we respond to criticisms by Michael Bergmann and Michael Rea in their “In Defense of Sceptical Theism : A Reply to Almeida and Oppy,” Australasian Journal of Philosophy 83.

I offer a minimal characterization of naturalism, with ontological, epistemological, psychological and evaluative dimensions. I explain why naturalism is attractive. I note that naturalists disagree among themselves about, among other things, the nature of values, beliefs, and abstractions. I close by responding to some standard objections to naturalism.

This book guides readers through an investigation of religion from a naturalistic perspective and explores the very meaning of the term ‘religious naturalism’. Oppy considers several widely disputed claims: that there cannot be naturalistic religion; that there is nothing in science that poses any problems for naturalism; that there is nothing in religion that poses any serious challenges to naturalism; and that there is a very strong case for thinking that naturalism defeats religion. -/- Naturalism and Religion: A Contemporary (...) Philosophical Investigation is an ideal introduction for undergraduate and postgraduate students of religious studies and philosophy who want to gain an understanding of the key themes and claims of naturalism from a religious and philosophical perspective. (shrink)

I provide a classification of varieties of pantheism. I argue that there are two different kinds of commitments that pantheists have. On the one hand, there is an ontological commitment to the existence of a sum of all things. On the other hand, there is an ideological commitment: either collectively or distributively, the sum of all things is divine.

In Pascal's Wager: A Study Of Practical Reasoning In Philosophical Theology ,[1] Nicholas Rescher aims to show that, contrary to received philosophical opinion, Pascal's Wager argument is "the vehicle of a fruitful and valuable insight--one which not only represents a milestone in the development of an historically important tradition of thought but can still be seen as making an instructive contribution to philosophical theology".[2] In particular, Rescher argues that one only needs to adopt a correct perspective in order to see (...) that Pascal's Wager argument is a good argument. Moreover, there seems to be a certain amount of contemporary support for Rescher's claim that Pascal's Wager argument can be seen to be a good argument when properly construed .[3] However, despite this recent trend to adopt a more sympathetic stance towards Pascal's Wager argument, I propose to defend the traditional view that Pascal's Wager argument is almost entirely worthless--at least from the theological standpoint. (No doubt, it has historical significance from the standpoint of decision theory; but that's a separate matter.). (shrink)

This paper provides a survey of philosophical discussion of the "the Turing Test". In particular, it provides a very careful and thorough discussion of the famous 1950 paper that was published in Mind.