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31It is widely accepted that divine creation of human beings is compatible with evolutionary theory, except perhaps in regard of the human soul, and that neo-Darwinian evolutionary theory provides an explanation of speciation and of complex features of organisms that undercuts Paley-style teleological arguments, whether or not the evolutionary mechanisms are truly random or deterministic. I will argue that a plausible understanding of the doctrine of creation of human beings is either logically or…Read more
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319Possibility is not consistencyPhilosophical Studies 172 (9): 2341-2348. 2015.We shall use Gödel’s Second Incompleteness Theorem to show that consistency is not possibility, and then argue that the argument does serious damage to some theories of modality where consistency plays a major but not exclusive role
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143A response to Almeida and JudischInternational Journal for Philosophy of Religion 53 (2): 65-72. 2003.Our new cosmological argument for the existence of God weakens the usual Principle of Sufficient Reason premise that every contingent true proposition has an explanation to a weaker principle (WPSR) that every such proposition could have an explanation. Almeida and Judisch have criticized the premises of our argument for leading to a contradiction. We show that their argument fails, but along the way we are led to clarify the nature of the conclusion of our argument. Moreover, we discuss an argu…Read more
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121Problems with pluralsOxford Studies in Metaphysics 9. 2015.Plural quantification, often used to evade Russell paradoxes, will lead back to them, given certain assumptions about propositions. This chapter provides a more generalized version of the path to paradox by showing that any theory that makes possible the construction of an appropriate packaging relation falls prey to a Russell paradox. It gives examples of widely-held metaphysical theories that require such a relation. It shows that the paradoxes that can result from plural quantification are mo…Read more
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238Fine- and Coarse-Tuning, Normalizability, and Probabilistic ReasoningPhilosophia Christi 7 (2). 2005.McGrew, McGrew and Vestrup (MMV) have argued that the fine-tuning anthropic principle argument for the existence of God fails because no probabilities can be assigned to the likelihood that physical constants fall in some finite interval. In particular, the fine-tuning argument that, say, some constant must lie in the range (1.000,1.001) in order for intelligent life to be possible is no better than a seemingly absurd coarse-tuning argument based on the need for that constant to lie in the range…Read more
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149Philosophy and LanguageProceedings of the American Catholic Philosophical Association 84 213-222. 2010.I shall discuss the problem of the definition of lying and the formulation of the duty of truthtelling. I shall argue that the morality of assertion is a special case of the morality of endorsement, and that a criterion of adequacy for an account of lying is that it handles certain cases of dishonest endorsement as well. Standardviews of lying fail to do so. I shall offer an account of the duty of honest endorsement in terms of the intention to avoid falsehood. But, in the end, we may simplyhave…Read more
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406A gödelian ontological argument improvedReligious Studies 45 (3): 347-353. 2009.Gödel's ontological argument is a formal argument for a being defined in terms of the concept of a positive property. I shall defend several versions of Gödel's argument, using weaker premises than Anderson's (1990) version, and avoiding Oppy's (1996 and 2000) parody refutations
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374The ontological argument and the motivational centres of livesReligious Studies 46 (2): 233-249. 2010.Assuming S₅, the main controversial premise in modal ontological arguments is the possibility premise, such as that possibly a maximally great being exists. I shall offer a new way of arguing that the possibility premise is probably true
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866Not Out of Lust but in Accordance with Truth: Theological and Philosophical Reflections on Sexuality and RealityLogos: A Journal of Catholic Thought and Culture 6 (4): 51-80. 2003.
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317The cardinality objection to David Lewis's modal realismPhilosophical Studies 104 (2): 169-178. 2001.According to David Lewis's extreme modal realism, every waythat a world could be is a way that some concretely existingphysical world really is. But if the worlds are physicalentities, then there should be a set of all worlds, whereasI show that in fact the collection of all possible worlds is nota set. The latter conclusion remains true even outside of theLewisian framework.
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267David Lewis’s Counterfactual Arrow of TimeNoûs 37 (4). 2003.David Lewis (1979) has argued that according to his possible worlds analysis of counterfactuals, “backtracking” counterfactuals of the form “If event A were to happen at tA, then event B would happen at tB” where tB precedes tA, are usually false if B does not actually happen at tB. On the other..
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9As Mark Murphy has recently shown, standard justifications of universal divine authority are insufficient. [1] By “divine authority” I shall mean the doctrine that obedience is morally owed to God by all. God would not give us a command that we did not have a reason to act in accordance with, Murphy argues, but it does not follow that we would be obliged, much less morally obliged, to have the fact of God’s having commanded the action be among our practical reasons for the action. We might, for …Read more
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17In the first chapter of Romans, Paul tells us that the power and deity of God are evident from what he has created. One reading of this is that there is an argument from the content of what has been created. Thus, the Book of Wisdom, which may well have been the source of Paul’s ideas here, says that “from the greatness and beauty of created things their original author, by analogy, is seen” (13:5, NAB). This is a kind of teleological or design argument. But one might also argue instead from gen…Read more
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26Plantinga starts by outlining an apparent conflict between certain claims of methodologically naturalist science and Christian faith. The conflict is not a logical contradiction, at least not once we are dealing with the more cautious “minus” versions of the doctrines, but some weaker relation such as the rational impossibility of believing both. 2. Scepticism about Simonian science..
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294Infinitesimals are too small for countably infinite fair lotteriesSynthese 191 (6): 1051-1057. 2014.We show that infinitesimal probabilities are much too small for modeling the individual outcome of a countably infinite fair lottery
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224Prophecy without middle knowledgeFaith and Philosophy 24 (4): 433-457. 2007.While it might seem prima facie plausible that divine foreknowledge is all that is needed for prophecy, this seems incorrect. To issue a prophecy, God hasto know not just how someone will act, but how someone would act were the prophecy issued. This makes some think that Middle Knowledge is required.I argue that Thomas Flint’s two Middle Knowledge based accounts of prophecy are unsatisfactory, but one of them can be repaired. However the resources needed for repair also yield a sketch of a forek…Read more
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178From restricted to full omniscience: ALEXANDER R. PRUSSReligious Studies 47 (2): 257-264. 2011.Some, notably Peter van Inwagen, in order to avoid problems with free will and omniscience, replace the condition that an omniscient being knows all true propositions with a version of the apparently weaker condition that an omniscient being knows all knowable true propositions. I shall show that the apparently weaker condition, when conjoined with uncontroversial claims and the logical closure of an omniscient being's knowledge, still yields the claim that an omniscient being knows all true pro…Read more
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6Programs, bugs, DNA and a design argumentIn Yujin Nagasawa & Erik Wielenberg (eds.), New Waves in Philosophy of Religion, Palgrave Macmillan. 2008.
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150An Open Infinite Future is ImpossibleFaith and Philosophy 33 (4): 461-464. 2016.According to the Open Futurist there are no true undetermined contingent propositions about the future. I shall argue on probabilistic grounds that there are some statements about infinite futures that Open Futurism cannot handle. The Open Futurist’s best bet is to reject an infinite future, but a Christian philosopher cannot take that bet, and hence should reject Open Futurism.
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253Time without Creation?Faith and Philosophy 31 (4): 401-411. 2014.We introduce three arguments for the thesis that time cannot exist prior to an original creation event. In the first argument, we seek to show that if time doesn’t depend upon creation, then time is infinite in the backwards direction, which is incompatible with arguments for a finite past. In the second and third arguments, we allow for the possibility of backwards-infinite time but argue that God could not have a sufficiently good reason to refrain from creating for infinitely many moments—eit…Read more
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78One Body: OverviewRoczniki Filozoficzne 63 (3): 7-19. 2015.I offer a reading of my book One Body on Christian sexual ethics as an application of Inference to Best Explanation based on theological and philosophical data.
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320A Counterexample to Plantinga’s Free Will DefenseFaith and Philosophy 29 (4): 400-415. 2012.Plantinga’s Free Will Defense is an argument that, possibly, God cannot actualize a world containing significant creaturely free will and no wrongdoings. I will argue that if standard Molinism is true, there is a pair of worlds w1 and w2 each of which contains a significantly free creature who never chooses wrongly, and that are such that, necessarily, at least one of these worlds is a world that God can actualize.
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302The essential divine-perfection objection to the free-will defenceReligious Studies 44 (4): 433-444. 2008.The free-will defence (FWD) holds that the value of significant free will is so great that God is justified in creating significantly free creatures even if there is a risk or certainty that these creatures will sin. A difficulty for the FWD, developed carefully by Quentin Smith, is that God is unable to do evil, and yet surely lacks no genuinely valuable kind of freedom. Smith argues that the kind of freedom that God has can be had by creatures, without a risk of creatures doing evil. I shall s…Read more
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11          Despite the fact that the strength of argument is clearly on the pro-life side—nobody except a handful of academics would question the grave wrongness of abortion were pregnancy never inconvenient—somehow ordinary intelligent people, like our students, often remain unconvinced. There are many reasons for this, of course. For instance, a number of students have had their children aborted while many know others who have had abortions, and one does not want to condemn onesel…Read more
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23Some people are opposed to abortion in general because they loved their children when these were fetuses. While this may be a psychological explanation of why these people believe thus, and perhaps an argument for these people not to abort the children they love, it does not at first sight seem to be an argument for the..
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275The accomplishment of plans: a new version of the principle of double effectPhilosophical Studies 165 (1): 49-69. 2013.The classical principle of double effect offers permissibility conditions for actions foreseen to lead to evil outcomes. I shall argue that certain kinds of closeness cases, as well as general heuristic considerations about the order of explanation, lead us to replace the intensional concept of intention with the extensional concept of accomplishment in double effect
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78SpinozaÂ’s God is a being with infinite attributes, each of which expresses infinite essence. Does this mean that God has infinitely many attributes, each of which expresses infinite essence, or does God simply have attributes, each of which is infinite and expresses infinite essence? SpinozaÂ’s argumentation in Letter 9 and the Scholium to Prop. I.10 clearly indicates that it is not just each individual attribute that is infinite, but there are in some sense infinitely many of them. This would seem …Read more