I. Accompanying the rise of professed socialists to political prominence in the United States and Britain, a growing academic literature, spearheaded by French economist Thomas Piketty’s bestsellin...

This paper critically assesses the “procedural” accounts of political justice set forth by John Rawls in A Theory of Justice (1971) and Robert Nozick in Anarchy, State, and Utopia (1974). I argue that the areas of agreement between Rawls and Nozick are more significant than their disagreements. Even though Nozick offers trenchant criticisms of Rawls's argument for economic redistribution (the “difference principle”), Nozick's own economic libertarianism is undermined by his “principle of rectification,” which he offers as a possible ground in (...) practice for the application of something like the difference principle. Both Rawls's and Nozick's accounts of justice fail because of their abstraction from human nature as a ground of right. At the same time the libertarianism on which they agree in the non-economic sphere would deprive a free society of its necessary moral underpinning. Rawls and Nozick err, finally, by demanding that the policies pursued by a just society conform to theoretical formulas concocted by philosophy professors, rather than leaving room (as Lockean liberalism does) for the adjustment of policies to particular circumstances based on statesmen's prudential judgment and the consent of the governed. Particularly troubling from the perspective of a citizen seriously concerned with the advancement of justice and freedom is both thinkers' shrill denunciations of existing liberal societies for failing to conform to their particular strictures. (shrink)

Argle. I’ve said it before and I’ll say it again: all things are material. Either holes are somehow material, or else there are no such things. Maybe a hole is the material hole-lining that, as we so misleadingly say, “surrounds” the hole; or else whatever ostensible reference we make to holes is secretly some other sort of language-game altogether, or it’s fictitious reference, or it’s just plain mistaken.

IN "THE INCARNATION AS A CONTINUING REALITY," RELIGIOUS STUDIES 6,303-27 (DECEMBER 1970), DAVID PAILIN CLAIMS THAT THE INCARNATION REVEALS THE NECESSARY, EMPIRICALLY NON-FALSIFIABLE CHARACTERISTICS OF GOD’S "ACTIVE ACTUALITY". GOD’S "PASSIVE ACTUALITY," THE WAY HE EXPERIENCES THE WORLD, IS METAPHYSICALLY KNOWN, BUT NOT HIS "ACTIVE ACTUALITY," THE WAY IN WHICH HE RESPONDS TO THE WORLD, FOR HE COULD HAVE RESPONDED OTHERWISE. NEVERTHELESS GOD’S CONCRETE RESPONSE IS EMPIRICALLY NON-FALSIFIABLE, FOR EVERYTHING THAT CAN POSSIBLY HAPPEN IN THE ACTUAL WORLD WILL REFLECT THAT (...) RESPONSE. I REPLY THAT THE METAPHYSICAL PRINCIPLES AS WELL COULD CONCEIVABLY BE OTHERWISE, BUT GOD’S PRIMORDIAL DECISION DETERMINES WHICH MUST BE EXEMPLIFIED BY ALL POSSIBLE ACTUALITIES WHATSOEVER. THE GENERAL CHARACTER OF GOD’S RESPONSE TO THE WORLD IS THEREBY METAPHYSICALLY KNOWABLE. THE INCARNATION OF THE CHRIST REVEALS TO US THE CONTINGENT CHARACTER OF GOD’S RESPONSE TO THE PARTICULARITIES OF HUMAN EXISTENCE, AND THIS. (shrink)

Pancreatitis is a complex, progressively destructive inflammatory disorder. Alcohol was long thought to be the primary causative agent, but genetic contributions have been of interest since the discovery that rare PRSS1, CFTR and SPINK1 variants were associated with pancreatitis risk. We now report two associations at genome-wide significance identified and replicated at PRSS1-PRSS2 and X-linked CLDN2 through a two-stage genome-wide study. The PRSS1 variant likely affects disease susceptibility by altering expression of the primary trypsinogen gene. The CLDN2 risk allele is (...) associated with atypical localization of claudin-2 in pancreatic acinar cells. The homozygous CLDN2 genotype confers the greatest risk, and its alleles interact with alcohol consumption to amplify risk. These results could partially explain the high frequency of alcohol-related pancreatitis in men. © 2012 Nature America, Inc. All rights reserved. (shrink)

The most important theories in fundamental physics, quantum mechanics and statistical mechanics, posit objective probabilities or chances. As important as chance is there is little agreement about what it is. The usual “interpretations of probability” give very different accounts of chance and there is disagreement concerning which, if any, is capable of accounting for its role in physics. David Lewis has contributed enormously to improving this situation. In his classic paper “A Subjectivist's Guide to Objective Chance” he described a (...) framework for representing single case objective chances, showed how they are connected to subjective credences, and sketched a novel account what they are within his Humean account of scientific laws. Here I will describe these contributions and add a little to them. (shrink)

I begin by sketching a dialectic typical of modern discussions of the ontological argument and explain the underlying modal principles. I will not pursue this well-worn dialectic. Instead I will explicate David Lewis’s valid reconstruction of St Anselm’s argument in Proslogion-II. Lewis’s objections to this argument are based on his idiosyncratic views about modality. Implicitly, Lewis presents a challenge: either I am right about modality, or there is a sound version of the ontological argument. More specifically, Lewis claims there (...) is no good reason to supposethere is anything special about the actual world. I suggest there is good reason to think that must be incorrect. Thus we are left with a formal version of the ontological argument for God’s existence that for all we have seen here looks eminently viable. (shrink)

David Lewis claims that his theory of modality successfully reduces modal items to nonmodal items. This essay will clarify this claim and argue that it is true. This is largely an exercise within ‘Ludovician Polycosmology’: I hope to show that a certain intuitive resistance to the reduction and a set of related objections misunderstand the nature of the Ludovician project. But these results are of broad interest since they show that would-be reductionists have more formidable argumentative resources than is (...) often thought. Lewis’s reduction depends on a set of methodological commitments each of which is fairly plausible or at least currently popular, and none of which is particular to modality. The choice of which of these commitments to reject I leave to the discerning antireductionist. The essay proceeds as follows: §1 discusses reduction generally and one or two relevant puzzles; §2 discusses Lewis’s reduction in particular; the longest section, §3 replies to four objections. (shrink)

David Lewis is usually thought to reject what Quine called “Aristotelian essentialism”. The starting point of this paper is to define and explain Aristotelian essentialism and locate it in the context of the criticism that Quine made of quantified modal logic. Indeed, according to Quine, Aristotelian essentialism would be one of the consequences of accepting quantified modal logic. After having explained Lewis’s stance in the Quinean debate against quantified modal logic, this paper will deal with the question as to (...) whether Lewis accepts or rejects Aristotelian essentialism. I think there are different plausible interpretations of the essentialist thesis, and I will distinguish between three such interpretations. This distinction between different interpretations of essentialism is both interesting per se and helpful in understanding the senses in which Lewis is or is not an antiessentialist. I will say, in fact, that while it is true that Lewis rejects Aristotelian essentialism under the first two understandings of the essentialist thesis, he endorses such a thesis according to a third understanding. I will then take this to show that there is a sense in which Aristotelian essentialism survives in Lewis’s metaphysical theory. (shrink)

The main line of Lewis's account of causation is in terms of chains of counterfactual dependence. According to his original account, a causal chain is a sequence of two or more events, with counterfactual dependence at each step; and one event is a cause of another if there is a causal chain from one to the other. But some awkward cases involving redundant causation lead him to introduce the notion of quasi-dependence. Laurie Paul has suggested a way of dealing with (...) one important class of these cases in terms of dependence proper. I shall suggest a different way of dealing with this class of cases; I shall also suggest that it is possible to deal with other awkward cases too in terms of dependence proper. (shrink)

This is the second volume of philosophical essays by one of the most innovative and influential philosophers now writing in English. Containing thirteen papers in all, the book includes both new essays and previously published papers, some of them with extensive new postscripts reflecting Lewis's current thinking. The papers in Volume II focus on causation and several other closely related topics, including counterfactual and indicative conditionals, the direction of time, subjective and objective probability, causation, explanation, perception, free will, and rational (...) decision. Throughout, Lewis analyzes global features of the world in such a way as to show that they might turn out to supervene on the spatiotemporal arrangement of local qualities. (shrink)

Tn this paper I explore and to an extent defend HS. The main philosophical challenges to HS come from philosophical views that say that nomic concepts-laws, chance, and causation-denote features of the world that fail to supervene on non-nomic features. Lewis rejects these views and has labored mightily to construct HS accounts of nomic concepts. His account of laws is fundamental to his program, since his accounts of the other nomic notions rely on it. Recently, a number of philosophers have (...) criticized Lewis's account, and Humean accounts of laws generally, for delivering, at best, a pale imitation ofthe genuine item. These philosophers think that the notion of law needed by science requires laws-if there are any-to be fundamental features of our world that are completely distinct from and not supervenient on the particular facts that they explain. I side with Lewis against these philosophers. Here I will argue that although Lewis-laws don't fulfill all our philosophical expectations, they do play the roles that science needs laws to play. The metaphysics and epistemology of Humean laws, and more specifically, Lewis-laws, are in much better shape than the metaphysics and epistemology of the main anti-Humean alternatives. However, I do have inisgivings about Lewis's account. Both he and his critics assume that the basic properties are so individuated so that the laws are not metaphysically necessary. If this assumption is rejected, then the question of Humean supervenience lapses. I conclude with a brief discussion of this position. (shrink)

David Lewis [1973] offers a possible worlds approach to a theory of counterfactuals. He attempts to specify necessary and sufficient conditions according to which a given counterfactual is true or false. This MA Thesis surveys Lewis's theory of counterfactuals in detail. Although for the most part I defend Lewis's account from several objections, in the final chapter I reason that his theory is susceptible to skepticism, which threatens any philosophical theory that relies on Lewis's theory to distinguish between non-paradigmatically (...) true and false counterfactuals. As for the more sympathetic portion of my project, while I show how Lewis's canonical account cannot handle some paradigmatically false counterfactuals--viz., those containing true components--I try to repair his analysis in the spirit of Alan Penczek [1997]. I then discuss Lewis's extension or enhancement to his original theory, which he gives in order to foil an objection advanced by Kit Fine [1975] and Jonathan Bennett [1984]. Finally, I outline and raise several worries inherent in Bennett's rival theory. As for the less then sympathetic section of this paper, I exploit arguments put forward by G. Lee Bowie [1979] as well as by Daniel Krasner and Mark Heller [1994], which are designed to undermine any systematic procedure to circumscribe Lewis's crucial three-place comparative similarity relation between possible worlds. (shrink)

David Lewis is widely known for maintaining the bizarre thesis known as genuine modal realism (hereafter, modal realism). He argued for modal realism on grounds of serviceability in On the Plurality of Worlds. However, earlier in Counterfactuals, he proposed a different kind of argument: from talk of ways things might be to possible worlds. In this paper, I examine the evolution of the latter argument in Lewis’s thought and evaluate its place in his overall case for modal realism, especially (...) in light of the alternative theory of modality known as magical ersatzism. I argue that Lewis turns the argument on its head in his critique of magical ersatzism, but that his later commitment to Ramseyan humility subjects him to a similar criticism. Therefore, the argument is, ultimately, a poisoned pawn for Lewis. (shrink)

I insist that I was able to raise my hand, and I acknowledge that a law would have been broken had I done so, but I deny that I am therefore able to break a law. To uphold my instance of soft determinism, I need not claim any incredible powers. To uphold the compatibilism that I actually believe, I need not claim that such powers are even possible. My incompatibilist opponent is a creature of fiction, but he has his prototypes (...) in real life. He is modeled partly after Peter van Inwagen and partly on myself when I first worried about van Inwagen's argument against compatibilism. (shrink)

Many years ago, C.B. Martin drew our attention to the possibility of ‘finkish’ dispositions: dispositions which, if put to the test would not be manifested, but rather would disappear. Thus if x if finkishly disposed to give response r to stimulus s, it is not so that if x were subjected to stimulus r, x would give response z; so finkish dispositions afford a counter‐example to the simplest conditional analysis of dispositions. Martin went on to suggest that finkish dispositions required (...) a theory of primitive causal powers; there, I think, he was mistaken. All that they require is an improved conditional analysis, and this improved analysis can be built upon whatever treatments of properties and of laws we may favour on other grounds. (shrink)

Newcomb's problem and similar cases show the need to incorporate causal distinctions into the theory of rational decision; the usual noncausal decision theory, though simpler, does not always give the right answers. I give my own version of causal decision theory, compare it with versions offered by several other authors, and suggest that the versions have more in common than meets the eye.

David Lewis's approach to objective chance is doubly distinctive. On the one hand, Lewis uses an epistemic principle to disclose the nature of chance. One the other, Lewis conjoins realism about chance with a reductive Humean metaphysics. I aim to undermine both aspects of his view. Specifically, I argue that reductive Humeanism fails across the board, and I use my discussion of chance to explain why. I also argue Lewis's "best-systems" approach to chance fails his own criteria for a (...) metaphysics of chance. (edited). (shrink)

It might be appropriate to begin my commentary by disclosing the fact that Brad Lewis and I are good friends. “Oh, no,” you might think, “this will be one of those cozy, mutual back-patting, insider sessions that so often take place in the American Philosophical Association group meetings.” But never fear. For one thing, I’m no insider to the intellectual circles represented in Dr. Lewis’ bibliog- raphy. Indeed, I’ve read only two of the 32 works listed there. (Depending on how (...) you look at it, that may make me either completely unqualified to comment on this paper or exceptionally well-qualified for reasons of critical distance.) Also, friendship and constructive criticism are entirely compatible in my book. And, to paraphrase a philosopher of some importance, “Brad is dear, but the truth is dearer.” I will begin my commentary by identifying some of Brad’s theses that I find interesting, important, and well-supported. The second part of my commentary will elaborate my major concerns about the paper. This part will be longer, not because my overall reaction is more critical than favorable, but because exploring different viewpoints generally takes more space and time than noting points of agreement. In my conclusion, I will suggest that many of the paper’s insights are likely to sail better if some of the baggage from postmodernism and cultural studies is thrown overboard. (shrink)

The revival of analytic metaphysics in the latter half of the twentieth century is typically understood as a consequence of the critiques of logical positivism, Quine’s naturalization of ontology, Kripke’s Naming and Necessity, clarifications of modal notions in logic, and the theoretical exploitation of possible worlds. However, this explanation overlooks the work of metaphysicians at the height of positivism and linguisticism that affected metaphysics of the late twentieth century. Donald C. Williams is one such philosopher. In this paper I explain (...) how Williams’s fundamental ontology and philosophy of time influenced in part the early formation of David Lewis’s metaphysics. Thus, Williams played an important role in the revival of analytic metaphysics. (shrink)

I offer two potential diagnoses of the behavioral norms governing post‐truth politics by comparing the view of language, communication, and truth‐telling put forward by David Lewis (extended by game theorists), and John Searle. My first goal is to specify the different ways in which Lewis, and game theorists more generally, in contrast to Searle (in the company of Paul Grice and Jurgen Habermas), go about explaining the normativity of truthfulness within a linguistic community. The main difference is that for (...) Lewis and game theorists, “truthful” signaling follows from an align- ment of interests, and deception follows from mixed motives leading to the calculation that sending false information is better for oneself. Following in the Enlightenment tradition, Searle argues that practical reasoning, which involves mastery of at least one language, requires that actors intend to communicate. This intention includes constraining the content of statements to uphold veracity conditions. After distinguishing between these two accounts, I will artic- ulate the implications for explaining, and even informing actions, constitutive of post‐truth politics. I argue that the strategic view of communication is suffi- cient neither to model everyday conversation nor to reflect a public sphere useful for democratic govern- ment. Both the pedagogy of strategic communication as cheap talk, and its concordance with new digital information technologies, challenge norms of truthful- ness that underlie modern institutions essential to an effective public sphere. (shrink)

The violation of the Bell inequality means that measurement-results in the two wings of the experiment cannot be screened off from one another, in the sense of Reichenbach. But does this mean that there is causation between the results? I argue that it does, according to Lewis's counterfactual analysis of causation and his associated views. The reason lies in his doctrine that chances evolve by conditionalization on intervening history. This doctrine collapses the distinction between the conditional probabilities that are used (...) to state screening off, and the counterfactuals with chance consequents that are used to state lack of causation. I briefly discuss ways to evade my argument. (shrink)

This note is a reply to margery bedford naylor's "a note on david lewis's realism about possible worlds" . naylor asks why, if we accept david lewis's argument for real possible worlds , we should not accept an analogous argument for impossible worlds. i argue that the latter argument is invalid on the modal realist account of possibility and thus has no force for an adherent of lewis.

Few figures of the Middle Ages command the attention of so many modern disciplines as Robert Grosseteste (c. 1170-1253). Theology, Philosophy, History, and Science are all areas which his life and thought continue to have significance and to inspire re-interpretation. Accompanied by a series of original commentaries, this new edition of Grosseteste's work, with English translation, draws together the perspectives of modern scientists and medieval specialists. Volume I of a six volume series, Knowing and Speaking presents two of the earliest (...) of Grosseteste's works, the treatises On the Liberal Arts and On the Generation of Sounds. These are accompanied by a significant Middle English treatise on the Seven Liberal Arts whose anonymous fifteenth-century author translated and excerpted passages from Grosseteste's treatises in a re-imagining of their structure and function.0Each work is treated separately within the volume, which is constructed in three parts. On the Liberal Arts sets Grosseteste's thoughts on the arts subjects and emphasises moral concerns about the purpose of learning. On the Generation of Sounds builds on the theories and statements of On the Liberal Arts in connection to the production of sound, elaborating the earlier position, relating the generation of sounds to human vocal and speech production. (shrink)

In a brief passage, David Lewis derives from quantum-theory a dilemma regarding the explanation of chance events which he tries to solve by first distinguishing plain from contrastive why-questions have answers. His brevity warrants elaboration and critique. I endorse his derivation, but I make a structural objection to his solution. Once a further distinction is drawn between different kinds of contrastive why-question, his solution can be modified and refined so as to go some way to meeting this objection. However, (...) it cannot resist a deeper objection to the effect that chance events can be given contrastive explanations after all. The alternative solution to the dilemma that I recommend holds Lewis's conception of the 'essence of chance' to be illusory. (shrink)

David Lewis defends the following "non-circular definition of personhood": "something is a continuant person if and only if it is a maximal R-interrelated aggregate of person-stages. That is: if and only if it is an aggregate of person-stages, each of which is R-related to all the rest (and to itself), and it is a proper part of no other such aggregate." I give a counterexample, involving a person who is a part of another, much larger person, with a separate (...) mental life. I then offer an easy repair, which preserves the virtues of Lewis's definition without introducing any new vices. (shrink)

A recent paper by David Lewis, "Causation as Influence", proposes a new theory of causation. I argue against the theory, maintaining that (a) the relation asserted by a claim of the form "C was a cause of E" is distinct from the relation of causal influence, (b) the former relation depends very much, contra Lewis, on the individuation conditions for the event E, and (c) Lewis's account is unsatisfactory as an analysis of either kind of relation. The counterexamples presented (...) here provide, I suggest, some insight into the reasons for the failure of counterfactual accounts of causal relations. (shrink)

David Lewis is associated with the controversial thesis that some properties are more eligible than others to be the referents of our predicates solely in virtue of those properties’ being more natural; independently, that is, of anything to do with our patterns of usage of the relevant predicates. On such a view, the natural properties act as ‘reference magnets’. In this paper I explore (though I do not endorse) a related thesis in epistemology: that some propositions are ‘justification magnets’. (...) According to the doctrine of justification magnetism, we have better justification for some propositions than for others solely in virtue of certain features of those propositions; independently, that is, of anything to do with evidential support or cognitive accomplishment. In the course of discussing an objection to justification magnetism I describe (though I do not endorse) a novel approach to epistemology akin to interpretationism in the theory of reference. (shrink)

Are there eliminativist tendencies in Lewis’s theory of mind? Prima facie one would like to give a negative answer to this question. Lewis conceives his theory as “Reduction of Mind”. Certainly, both reduction and elimination of mental states are regarded as materialist, yet nevertheless as competive strategies. Relying on folk psychology, as Lewis does, is objected to by eliminativists who denounce FP mainly because they think it is a theory that is essentially wrong. Yet, Lewis sees the importance of FP (...) residing only in its causal schemes that explain behavior and not in its role of specifying internal states by specific mental properties. Should therefore the reduction of mental states not be considered as eliminativist in a certain sense? There is an ambiguity in these concepts that forbids an immediate answer. The problem will be elaborated in section II and III with regard to intentional and qualitative mental states. As a preliminary tho that I discuss in section I central aspects and problems of Lewis’ theory of mind. (shrink)

David Lewis's best-system analysis of laws of nature is perhaps the best known sophisticated regularity theory of laws. Its strengths are widely recognized, even by some of its ablest critics. Yet it suffers from what appears to be a glaring weakness: It seems to grant an arbitrary privilege to the standards of our own scientific culture. I argue that by reformulating, or reinterpreting, Lewis's exposition of the best-system analysis, we arrive at a view that is free of this weakness. (...) The resulting theory of laws has the surprising consequence that the term "law of nature" is indexical. (shrink)

The purpose of this paper is to argue that the hybrid formalism fits naturally in the context of David Lewis’s counterfactual logic and that its introduction into this framework is desirable. This hybridization enables us to regard the inference “The pig is Mary; Mary is pregnant; therefore the pig is pregnant” as a process of updating local information (which depends on the given situation) by using global information (independent of the situation). Our hybridization also has the following technical advantages: (...) (i) it preserves the completeness and decidability of Lewis’s logic; (ii) it allows us to characterize the Limit Assumption as a proof-rule with some side-conditions; and (iii) it enables us to establish a general Kripke completeness result by using the proof-rule corresponding to the Limit Assumption. Keywords Counterfactual logic - David Lewis - Contextually definite description - Hybrid logic - Arthur Prior - The limit assumption - Strong completeness - Decidability - Bisimulation - Pure completeness. (shrink)

I examine recent arguments based on functionalism that claim to show that Bohm's theory fails to solve the measurement problem, or if it does so, it is only because it reduces to a form of the many-worlds theory. While these arguments reveal some interesting features of Bohm's theory, I contend that they do not undermine the distinctive Bohmian solution to the measurement problem. ‡I would like to thank Harvey Brown, Martin Thomson-Jones, and David Wallace for helpful discussions. †To contact (...) the author, please write to: Department of Philosophy, University of Miami, P.O. Box 248054, Coral Gables, FL 33124–4670; e-mail: [email protected]. (shrink)

In this essay I argue for a line of descent, in terms of methodology as an apologist, from J.H. Newman to G.K. Chesterton, and hence to C.S. Lewis. I analyse aspects of Chesterton's methodology as an apologist which strongly suggest the influence of Newman. I then argue that Newman may have exercised a greater influence on Lewis's methodology as an apologist, through Chesterton, than has previously been realised. This raises questions for future study concerning Newman's possible influence, not only on (...) Lewis, but on the other Inklings and related thinkers such as Dorothy Sayers. (shrink)

In his justifiedly famous paper, “Elusive Knowledge” (Australasian Journal of Philosophy, 74:4, 1996), David Lewis presents a contextualist account of knowledge, which, like other contextualist accounts, depicts sceptical claims as involving application of a higher standard of knowledge than is applied in everyday ascriptions of knowledge. On Lewis’ account, the sceptic’s denials and the everyday ascriptions are made in different contexts, which allows them both to be true. His account gives detailed specification of how contexts are to be determined. (...) My paper points out that this view is unattractive to the sceptic, since it makes scepticism, even if true, completely disconnected from and irrelevant to the rest of our cognitive discourse. After arguing that the sceptic’s own ascriptions of knowledge (made outside the philosophy seminar room) can be explained in non-contextualist ways, I expound and criticise Lewis’ analysis of knowledge, taking up in particular a central component of his account, the “Rule of Attention”. In the central part of the paper I argue that the reasons given for the inclusion of the rule are all inadequate, and also that there are positive reasons for rejecting it. The final section of the paper argues that the excision of the Rule of Attention removed would leave Lewis’ account subject to serious counter- examples. (shrink)

Helen Beebee has recently argued that David Lewis’s account of compatibilism, so-called local miracle compatibilism, allows for the possibility that agents in deterministic worlds have the ability to break or cause the breaking of a law of nature. Because Lewis’s LMC allows for this consequence, Beebee claims that LMC is untenable and subsequently that Lewis’s criticism of van Inwagen’s Consequence Argument for incompatibilism is substantially weakened. I review Beebee’s argument against Lewis’s thesis and argue that Beebee has not refuted (...) LMC and concomitantly has not demonstrated that Lewis’s criticism of the Consequence Argument fails. (shrink)

My aim is to rekindle interest in David Lewis's (1983) infamous but neglected Mixed Theory of mental states. The Mixed Theory is a mix of physicalism and functionalism designed to capture the intuitions that both Martians and abnormal human Madmen can be in pain. The Mixed Theory is widely derided. But I offer a new development of the Mixed Theory immune to its most prominent objections. In doing so, I uncover a new motivation for the Mixed Theory: its unique (...) ability to explain cases in which it is plausibly indeterminate whether something is in pain. The Mixed Theory, whether or not it is ultimately correct, at least deserves renewed attention. (shrink)

In this paper, I aim to explore Lewis’s best system analysis and how it can accommodate laws with exceptions. The Best System Account has been introduced to provide an alternative view for both minimalist and counterfactual theories of regularities. Simple regularity theory faces problems in which there is some generalization that seems to be a law or some regularities that are established accidentally. It tries to exclude the accidental generalization from the account. However, the best system analysis can solve the (...) problem of how to distinguish between laws and accidents. (shrink)

In his Essays on the Intellectual Powers of Man, Thomas Reid offers a barrage of objections to the view, held by David Hume, that conceivability implies possibility. In this paper, I present Reid's first two objections to the ‘maxim of conceivability’ and defend Hume from them. The first objection concerns our ability to understand impossible claims, while the second concerns thoughts about impossible claims (such as, for instance, the thought that they are impossible). Reid's objections have special force against (...) Hume because of his commitment to analyse all operations of the understanding in terms of conception. I argue that these objections fail, on the grounds that they presuppose substantive views about language which we are not warranted in attributing to Hume. Ultimately, Reid's objections help us draw out a set of intertwined issues about the language-mind relationship in Hume. (shrink)

Like many discussions on the pros and cons of epistemic foundationalism, the debate between C. I. Lewis and H. Reichenbach dealt with three concerns: the existence of basic beliefs, their nature, and the way in which beliefs are related. In this paper we concentrate on the third matter, especially on Lewis’s assertion that a probability relation must depend on something that is certain, and Reichenbach’s claim that certainty is never needed. We note that Lewis’s assertion is prima facie ambiguous, but (...) argue that this ambiguity is only apparent if probability theory is viewed within a modal logic. Although there are empirical situations where Reichenbach is right, and others where Lewis’s reasoning seems to be more appropriate, it will become clear that Reichenbach’s stance is the generic one. We conclude that this constitutes a threat to epistemic foundationalism.Keywords: Epistemic foundationalism; Probability; Clarence Irving Lewis; Hans Reichenbach. (shrink)

In an unpublished speech from 1991, David Lewis told his audience that he counted ‘the metaphysician Carnap ’ amongst his historical ancestors. Here I provide a novel interpretation of the Aufbau that allows us to make sense of Lewis’s claim. Drawing upon Lewis’s correspondence, I argue it was the Carnap of the Aufbau whom Lewis read as a metaphysician, because Carnap’s appeal to the notion of founded relations in the Aufbau echoes Lewis’s own appeal to the metaphysics of natural (...) properties. I further maintain that Lewis was right to read Carnap this way and that the notion of a founded relation has a legitimate claim to be both logical and metaphysical. I also argue that Carnap’s initial response to Goodman’s puzzle about ‘grue’ relies upon a metaphysics of simple properties which also prefigures Lewis’s own response to Goodman invoking natural properties. (shrink)

David Lewis’s arguments against magical ersatzism are notoriously puzzling. Untangling different strands in those arguments is useful for bringing out what he thought was wrong with not just one style of theory about possible worlds, but with much of the contemporary metaphysics of abstract objects. After setting out what I take Lewis’s arguments to be and how best to resist them, I consider the application of those arguments to general theories of properties and relations. The constraints Lewis motivates turn (...) out to yield an argument for concretism about possible individuals that is quite different from the better-known Lewisian arguments for that position. The discussion also touches on the puzzling question of whether things are the way they are because of the properties they have, or are the properties and relations the way they are because of the things that have them. (shrink)

Many contemporary philosophers accept Hume's Dictum, according to which there are no metaphysically necessary connections between distinct, intrinsically typed entities. Tacit in Lewis 's work is a potential motivation for HD, according to which one should accept HD as presupposed by the best account of the range of metaphysical possibilities---namely, a combinatorial account, applied to spatiotemporal fundamentalia. Here I elucidate and assess this Ludovician motivation for HD. After refining HD and surveying its key, recurrent role in Lewis ’s work, I (...) present Lewis ’s appeal to HD as providing a broadly axiomatic generating basis for the space of metaphysical modality, and canvas the prima facie advantages of the resulting combinatorial principle---HD ---as being principled, extensionally adequate and modally reductive. Most criticisms of Lewis 's combinatorialism have targeted seeming ways in which the theory overgenerates the desired space; I rather argue that HD seriously undergenerates the desired space in three different ways. For each way I argue that available means of overcoming the undergeneration either fail to close the gap, undermine the claim that HD is a principled generator of metaphysical modal space, undermine the reductive status of Lewis 's combinatorialism, or call into question the truth of HD. (shrink)

Scott Soames’ Reference and Description contains arguments against a number of different versions of two-dimensional semantics. After early chapters on descriptivism and on Kripke’s anti-descriptivist arguments, a chapter each is devoted to the roots of twodimensionalism in “slips, errors, or misleading suggestions” by Kripke and Kaplan, and to the two-dimensional approaches developed by Stalnaker (1978) and by Davies and Humberstone (1981). The bulk of the book (about 200 pages) is devoted to “ambitious twodimensionalism”, attributed to Frank Jackson, David Lewis, (...) and me. After a quick overview of two-dimensional approaches, I will focus on Soames’ discussion of ambitious twodimensionalism. I will then turn to a system advocated by Soames that is itself strikingly reminiscent of a two-dimensional approach. Two-dimensional semantic theories are varieties of possible-worlds semantics on which linguistic items can be evaluated relative to possibilities in two different ways, yielding two sorts of intensional semantic values, which can be seen as two “dimensions” of meaning. The second dimension is the familiar sort of Kripkean evaluation in metaphysically possible worlds, so that necessarily coextensive terms (such as ‘Hesperus’ and ‘Phosphorus’ or ‘water’ and ‘H2O’) always have the same semantic value. The first dimension behaves differently, so that there are typically at least some cases where necessarily coextensive terms have different semantic values on the first dimension. For this reason, the two-dimensional framework is sometimes seen as a way of granting many of the insights of a Kripkean approach to meaning (on the second dimension), while retaining elements of a Fregean approach to meaning (on the first dimension). (shrink)

In lieu of an abstract, here is a brief excerpt of the content:George Engel’s Legacy for the Philosophy of Medicine and PsychiatryBradley Lewis (bio)KeywordsBiopsychosocial model, George Engel, pragmatism, philosophy of medicine, philosophy of psychiatryEach of the respondents to this paper raises critical and important concerns. I am grateful for the quality of their insights. David Brendel’s response, along with his recent book, Healing Psychiatry: Bridging the Science/Humanism Divide, resembles my efforts in several ways. Like Brendel, I too believe that (...) the American pragmatic philosophy can be helpful in healing the splits and divisions within psychiatry. And, like Brendel, I believe that psychiatry would benefit from what he calls the “four ps” of pragmatism. Where we differ with regard to George Engel and his biopsychosocial model seems to be less about philosophy and more about strategy. Brendel argues that Engel was too scientistic in his manifest reasoning to be considered a pragmatist. I agree with this description of Engel. But, strategically, we can go beyond Engel’s manifest reasoning to draw out the implications of Engel’s writings in a pragmatic fashion. I am not saying that Engel did this himself; I am only saying that it is very possible to reinterpret Engel along these lines.Brendel also argues that the biopsychosocial model itself needs improvement. But, just as it is possible to update Engel’s theoretical scaffold, we can also update Engel’s biopsychosocial model. Along the lines of Brendel’s concerns, we can easily revise the model so that we remember that not all problems need complex analysis and interventions. Some problems are relatively simple and can have a simple solution. We can also revise the model so we include questions of consumer participation and the provisional nature of the clinical encounter. I see nothing in the biopsychosocial model that contradicts either of these concerns. Yes, the biopsychosocial model needs to be updated, refurbished, expanded, and reimagined. That is my point in the paper.The traction of Brendel’s concerns is not can we reinterpret Engel? or can we refresh the biopsychosocial model?—of course we can. The traction of his concern seems to be “should we?” To this strategic question, Brendel’s answer is no and my answer is yes. I argue that it is a good idea to refresh and refurbish Engel and his biopsychosocial model because it helps to create a connection with an important tradition within both medicine and psychiatry: the tradition of balanced, broadminded, nuanced, patient-centered and anti-reductionistic [End Page 327] care. This tradition is important because medicine and psychiatry seem perpetually vulnerable to the temptations of reductionist approaches and to what Engel, and Nassir Ghaemi more recently, call “dogmatism” (Engel 1977, 130; Ghaemi, 2003, 301). Whether reductionism and dogmatism take the form of biopsychiatry, or psychoanalysis, or antipsychiatry, or cognitive-behavioral therapy, the problems of dogmatism are the same.I am sure Brendel would agree with this, which is why he raises pluralism to such a prominent position in his own reasoning. The difference is that Brendel believes we can better get to this kind of balanced clinical care by letting go of the past figures like Engel and moving into the bright light of the twenty-first century. Maybe so. But my thinking when I wrote the paper goes the other way around. For me, if clinical medicine and psychiatry more carefully tended to its history and tradition, it would be less likely to fall sway to the next Johnny-come-lately reductionistic model.Jeffery Spike’s memories of George Engel during the years they worked together at the University of Rochester School of Medicine provide a good sense of why Engel is an important figure to remember and to pay homage. As Spike puts it, Engel was not only a “legendary figure” with an “almost mythical diagnostic ability,” Engel “probably had more influence on the philosophy of medicine in the United States than any other person, physician, or philosopher.” Both of these accomplishments help to explain why Engel is worth remembering.Those of us in medicine and psychiatry all know mythical clinicians and teachers—the ones who seem like Michael Jordan used to seem on the basketball court, able to somehow make even... (shrink)

In this discussion piece, I argue that David Lewis fails to support his claim that time-travelling Tim cannot kill his Grandfather in 1921. This result, in turn, undermines Lewis’s contextualist solution to the Grandfather Paradox—i.e. conceding that Tim can and cannot kill Grandfather, but relative to different contexts in each case.

In the Poroi, Xenophon’s radical solution to Athens’ financial problems includes several ideas vital to the field of political economy. His identification of justice with the pursuit of wealth provides an alternative to the power politics that for half a century had taken Athens into a series of self-destructive imperial wars. He supports his idea of economic growth with arithmetic calculations, and he connects the results to traditional Greek views of public rewards and benefits. From this he crafts a goal-directed (...) strategy for economic growth designed to foster good will through incentives rather than coercion. This brief commentary on the text shows how Xenophon’s positive claims are based not on a modern demand-side conception of economic stimulation, but rather on building productive capital. He is a proto-Saysian, not a Keynesian. Xenophon’s proposals range beyond the polis into a pan-Hellenic vision of increasing trade that is centred on Athens, monetized with Athenian coinage, and idealized into the common peace that the Greeks had so long desired but so little achieved. (shrink)

In his ‘Causation as Influence’,1 David Lewis proposed a counterfactual theory of cause which was designed to improve on his previous account.2 Here I offer counter-examples to this new account, involving early preemption and late preemption, and a revised account, which is no longer an influence theory, that handles those counter-examples.

In David Lewis’s famous ‘Many, but Almost One’, he argues that when objects of the same kind share most of their parts, they can be counted as one. I argue that mereological overlap does not do the trick. A better candidate is overlap in function. Although mereological overlap often goes hand-in-hand with functional overlap, a functional approach is more accurate in cases in which mereology and function are teased apart. A functional approach also solves a version of the problem (...) of the many that Lewis thought was immune to the Almost-One solution. (shrink)