Lewis's notion of a "natural" property has proved divisive: some have taken to the notion with enthusiasm, while others have been sceptical. However, it is far from obvious what the enthusiasts and the sceptics are disagreeing about. This paper attempts to articulate what is at stake in this debate.

This paper is an investigation of the general logic of "identifications", claims such as 'To be a vixen is to be a female fox', 'To be human is to be a rational animal', and 'To be just is to help one's friends and harm one's enemies', many of which are of great importance to philosophers. I advocate understanding such claims as expressing higher-order identity, and discuss a variety of different general laws which they might be thought to obey. [New version: (...) Nov. 4th, 2016]. (shrink)

This paper considers how counterfactuals should be evaluated on the assumption that determinism is true. I argue against Lewis's influential view that the actual laws of nature would have been false if something had happened that never actually happened, and in favour of the competing view that history would have been different all the way back. I argue that we can do adequate justice to our ordinary practice of relying on a wide range of historical truths in evaluating counterfactuals by (...) saying that, in typical cases, history would have been only *very slightly* different until shortly before the relevant time. The paper also draws some connections between the puzzle about counterfactuals under determinism and the debate about whether determinism entails that no-one can ever do otherwise than they in fact do. (shrink)

I explicate and defend the claim that, fundamentally speaking, there are no numbers, sets, properties or relations. The clarification consists in some remarks on the relevant sense of ‘fundamentally speaking’ and the contrasting sense of ‘superficially speaking’. The defence consists in an attempt to rebut two arguments for the existence of such entities. The first is a version of the indispensability argument, which purports to show that certain mathematical entities are required for good scientific explanations. The second is a speculative (...) reconstruction of Armstrong's version of the One Over Many argument, which purports to show that properties and relations are required for good philosophical explanations, e.g. of what it is for one thing to be a duplicate of another. (shrink)

In general, a given object could have been different in certain respects. For example, the Great Pyramid could have been somewhat shorter or taller; the Mona Lisa could have had a somewhat different pattern of colours; an ordinary table could have been made of a somewhat different quantity of wood. But there seem to be limits. It would be odd to suppose that the Great Pyramid could have been thimble-sized; that the Mona Lisa could have had the pattern of colours (...) that actually characterizes The Scream; or that the table could have been made of the very quantity of wood that in fact made some other table. However, there are puzzling arguments that purport to show that so long as an object is capable of being somewhat different in some respect, it is capable of being radically different in that respect. These arguments rely on two tempting thoughts: first, that an object’s capacity for moderate variation is a non-contingent matter, and second, that what is possibly possible is simply possible. This book systematically investigates competing strategies for resolving these puzzles, and defends one of them. Along the way it engages with foundational questions about the metaphysics of modality. (shrink)

Argues for the "thirder" solution to the Sleeping Beauty puzzle. The argument turns on an analogy with a variant case, in which a coin-toss on Monday night determines whether one's memories of Monday are permanently erased, or merely suspended in such a way that they will return some time after one wakes up on Tuesday.

We attempt to extend the nominalistic project initiated in Hartry Field's Science Without Numbers to modern physical theories based in differential geometry.

Even if non-cognitivists about some subject-matter can meet Geach’s challenge to explain how there can be valid implications involving sentences which express non-cognitive attitudes, they face a further problem. I argue that a non-cognitivist cannot explain how, given a valid argument whose conclusion expresses a belief and at least one of whose premises expresses a non-cognitive attitude, it could be reasonable to infer the conclusion from the premises.

This paper is a response to Theodore Sider's book, Writing the Book of the World. It raises some puzzles about Sider's favoured methodology for finding out about naturalness (or 'structure').

Timothy Williamson has shown that the B axiom for 'definitely' (α → Δ¬Δ¬α) guarantees that if a sentence is second-order vague in a Kripke model, it is nth order vague for every n. More recently, Anna Mahtani has argued that Williamson's epistemicist theory of vagueness does not support the B axiom, and conjectured that if we consider models in which the “radius of accessibility” varies between different points, we will be able to find sentences that are nth-order vague but (n+1)th-order (...) precise, for any n. This paper bolsters Mahtani's argument, shows her conjecture to be true, and shows that imposing certain further natural constraints on "variable radius" models does not change the situation. (shrink)

This paper lays out a novel proposal about the metaphysical foundations of (non-relativistic) quantum mechanics, which has some elements in common with Everett's “Many Worlds” interpretation and some elements in common with Bohm's ”Pilot Wave” interpretation. The view agrees with the Everettians that the quantum wavefunction can be interpreted be interpreted as a <em>complete</em> description of the world in fundamental terms. But it holds that this truth of this description suffices for the existence of an <em>uncountable</em> plurality of “worlds” of (...) ordinary, non-fundamental objects, where each such “world” corresponds to a mapping of points of time to points of configuration space that obeys that Bohmian “Guidance Equation”. (shrink)

BB Whenever a baseball causes an event, the baseball’s constituent atoms also cause that event, and the baseball is causally irrelevant to whether those atoms cause that event.

Region R Question: How many objects — entities, things — are contained in R? Ignore the empty space. Our question might better be put, 'How many material objects does R contain?' Let's stipulate that A, B and C are metaphysical atoms: absolutely simple entities with no parts whatsoever besides themselves. So you don't have to worry about counting a particle's top half and bottom half as different objects. Perhaps they are 'point-particles', with no length, width or breadth. Perhaps they are (...) extended in space without possessing spatial parts (if that is possible). Never mind. We stipulate that A, B and C are perfectly simple. We also stipulate that they are connected as follows. A and B are stuck together in such a way that when a force is applied to one of them, they move together 'as a unit'. Moreover, the two of them together exhibit behavior that neither would exhibit on its own — Perhaps they emit a certain sound, or glow in the dark — whereas C is.. (shrink)

The American Journal of Bioethics, Volume 11, Issue 7, Page 1-2, July 2011.

The trouble with situation ethics from an author’s point of view is that the whole thing can be summed up in a few sentences. This means that it is difficult to write a book about it—and doubly difficult to write a second book about it. Joseph Fletcher has solved this problem by publishing as his second book a series of articles about half of which were published prior to his first book while the others merely repeat what he has said (...) already. This second book gives us new examples of situation ethics but little new thinking on the subject. Chapter IX on Euthanasia is typical: it is written at the level of a popular magazine. Having given a stock outline of the problem Fletcher proposes his ‘solution’—creative and courageous facing up to the issues! Chapter X on Business is perhaps the best. Here Fletcher shows himself aware of some of the objections which can be made against his position—objections based on a consideration of long-term consequences of certain types of acts. He also shows awareness of why his opponents consider certain actions to be evil always. Fletcher’s reply puts him nearer to the existentialist type of situation ethics than would appear from the rest of his writings: he stresses ‘the ambivalences and ambiguities that go along with freedom’ and the inability of anybody to assess objectively all of the motives, means and ends at stake. In this book, as in his other one, Fletcher is guilty of exasperating over-simplifications and non sequiturs For instance he maintains that love and justice are identical. To show this he spends three-and-a-half pages examining the meaning of the word ‘love’ and devotes three-and-a-half lines to justice. But perhaps it ought to be admitted that one reason for exasperation is that it is difficult to find a defensible alternative to Fletcher’s approach. The manuals certainly do not provide an answer. They, like Fletcher, fail to distinguish between abstract universality and concrete generality. Any attempt to base universal laws on an abstract ‘common denominator’ will result in legalism or leave the laws as mere guide-lines. A re-examination of what is meant by a universal principle is an urgent necessity. This book will have served a useful purpose if it brings this home to us. (shrink)

The trouble with situation ethics from an author’s point of view is that the whole thing can be summed up in a few sentences. This means that it is difficult to write a book about it—and doubly difficult to write a second book about it. Joseph Fletcher has solved this problem by publishing as his second book a series of articles about half of which were published prior to his first book while the others merely repeat what he has said (...) already. This second book gives us new examples of situation ethics but little new thinking on the subject. Chapter IX on Euthanasia is typical: it is written at the level of a popular magazine. Having given a stock outline of the problem Fletcher proposes his ‘solution’—creative and courageous facing up to the issues! Chapter X on Business is perhaps the best. Here Fletcher shows himself aware of some of the objections which can be made against his position—objections based on a consideration of long-term consequences of certain types of acts. He also shows awareness of why his opponents consider certain actions to be evil always. Fletcher’s reply puts him nearer to the existentialist type of situation ethics than would appear from the rest of his writings: he stresses ‘the ambivalences and ambiguities that go along with freedom’ and the inability of anybody to assess objectively all of the motives, means and ends at stake. In this book, as in his other one, Fletcher is guilty of exasperating over-simplifications and non sequiturs For instance he maintains that love and justice are identical. To show this he spends three-and-a-half pages examining the meaning of the word ‘love’ and devotes three-and-a-half lines to justice. But perhaps it ought to be admitted that one reason for exasperation is that it is difficult to find a defensible alternative to Fletcher’s approach. The manuals certainly do not provide an answer. They, like Fletcher, fail to distinguish between abstract universality and concrete generality. Any attempt to base universal laws on an abstract ‘common denominator’ will result in legalism or leave the laws as mere guide-lines. A re-examination of what is meant by a universal principle is an urgent necessity. This book will have served a useful purpose if it brings this home to us. (shrink)

In the ‘ordinary business of life’, everyone makes claims about what there is. For instance, we say things like: ‘There are some beautiful chairs in my favourite furniture shop’. Within the context of philosophical debate, some philosophers also make claims about what there is. For instance, some ontologists claim that there are chairs; other ontologists claim that there are no chairs. What is the relation between ontologists’ philosophical claims about what there is and ordinary claims about what there is? According (...) to Cian Dorr, ontologists’ claims and denials of existence belong to ‘a sort of professional jargon’. Dorr claims, for example, that ‘There are prime numbers between 20 and 30’ can be used superficially or used fundamentally. Ordinary uses of are superficial: we use the sentence to assert a boring, well-known truth. But in the ontology room, is used fundamentally, to assert that numbers are ‘part of the ultimate furniture of reality’: and this is a substantial metaphysical doctrine, not a boring truth. In this paper, we will show that none of Dorr’s arguments for these claims succeeds. (shrink)

Cian Dorr (2002) gives an argument for the 1/3 position in Sleeping Beauty. I argue this is based on a mistake about Sleeping Beauty's epistemic position.

According to Cian Dorr, non-cognitivism has the implausible implication that arguments like the following are cases of wishful thinking: If lying is wrong, then the souls of liars will be punished in the afterlife; lying is wrong; therefore, the souls of liars will be punished in the afterlife. Dorr further claims that if non-cognitivism implies that the above argument and similar arguments are cases of wishful thinking, then non-cognitivism remains implausible even if one solves the so-called Frege-Geach problem. (...) Dorr’s claims have faced a number of objections, but I believe that Dorr is on to something. So, after summarizing Dorr’s argument and briefly describing three flaws in what Dorr claims, I shall present a distinct objection to non-cognitivism and use the preceding to show what Dorr’s argument gets right and what it gets wrong. (shrink)

This paper defends the claim that although ‘Superman is Clark Kent and some people who believe that Superman flies do not believe that Clark Kent flies’ is a logically inconsistent sentence, we can still utter this sentence, while speaking literally, without asserting anything false. The key idea is that the context-sensitivity of attitude reports can be - and often is - resolved in different ways within a single sentence.

We argue that all comparative expressions in natural language obey a principle that we call Comparability: if x and y are at least as F as themselves, then either x is at least as F as y or y is at least as F as x. This principle has been widely rejected among philosophers, especially by ethicists, and its falsity has been claimed to have important normative implications. We argue that Comparability is needed to explain the goodness of several patterns (...) of inference that seem manifestly valid, that the purported failures of Comparability would have absurd consequences, and that the influential arguments against Comparability are less compelling than they may have initially seemed. (shrink)

This chapter contains sections titled: 1 A Question about Composition 2 Some Answers 3 How Shall We Decide? 4 Common Sense and Unrestricted Composition 5 Common Sense and Compositional Nihilism 6 Compositional Nihilism and the Self 7 The Appeal to Science 8 Problem or Pseudoproblem? What To Do?

Angesichts der gegenwärtigen ökonomischen, ökologischen und sozialen Krisen zeichnet sich ab, dass die Wachstumsdynamik moderner Gesellschaften nicht mehr stabilisierend wirkt, sondern selbst zum Krisentreiber geworden ist. In diesem Band diskutieren die Philosophin Nancy Fraser und die Soziologen Klaus Dörre, Stephan Lessenich und Hartmut Rosa, was dies für die Gegenwart und die Zukunft der Demokratie bedeutet und welche Konzeptionen und Wege hin zu einer demokratischen Transformation vorstellbar sind. Aus ihrer demokratietheoretischen Perspektive intervenieren Viviana Asara, Banu Bargu, Ingolfur Blühdorn, Robin Celikates, Lisa (...) Herzog, Brian Milstein, Michelle Williams und Christos Zografos. (shrink)

In this paper I attempt two things. First, I argue that one can coherently imagine different communities using languages structurally similar to English, but in which the meanings of the quantifiers vary, so that the answers to ontological questions, such as ‘Under what circumstances do some things compose something?’, are different. Second, I argue that nevertheless, one can make sense of the idea that of the various possible assignments of meanings to the quantifiers, one is especially fundamental, so that there (...) is still room for genuine debate as regards the answers to ontological questions construed in the fundamental way. My attempt to explain what is distinctive about the fundamental senses of the quantifiers involves a generalisation of the idea that claims of existence are never analytic.<br>. (shrink)

We defend the thesis that every necessarily true proposition is always true. Since not every proposition that is always true is necessarily true, our thesis is at odds with theories of modality and time, such as those of Kit Fine and David Kaplan, which posit a fundamental symmetry between modal and tense operators. According to such theories, just as it is a contingent matter what is true at a given time, it is likewise a temporary matter what is true at (...) a given possible world; so a proposition that is now true at all worlds, and thus necessarily true, may yet at some past or future time be false in the actual world, and thus not always true. We reconstruct and criticize several lines of argument in favor of this picture, and then argue against the picture on the grounds that it is inconsistent with certain sorts of contingency in the structure of time. (shrink)

Seth Yalcin has pointed out some puzzling facts about the behaviour of epistemic modals in certain embedded contexts. For example, conditionals that begin ‘If it is raining and it might not be raining, … ’ sound unacceptable, unlike conditionals that begin ‘If it is raining and I don’t know it, … ’. These facts pose a prima facie problem for an orthodox treatment of epistemic modals as expressing propositions about the knowledge of some contextually specified individual or group. This paper (...) develops an explanation of the puzzling facts about embedding within an orthodox framework. (shrink)

This paper gives a simple method for providing categorial brands of feature-based unification grammars with a model-theoretic semantics. The key idea is to apply the paradigm of fibred semantics (or layered logics, see Gabbay (1990)) in order to combine the two components of a feature-based grammar logic. We demonstrate the method for the augmentation of Lambek categorial grammar with Kasper/Rounds-style feature logic. These are combined by replacing (or annotating) atomic formulas of the first logic, i.e. the basic syntactic types, by (...) formulas of the second. Modelling such a combined logic is less trivial than one might expect. The direct application of the fibred semantics method where a combined atomic formula like np (num: sg & pers: 3rd) denotes those strings which have the indicated property and the categorial operators denote the usual left- and right-residuals of these string sets, does not match the intuitive, unification-based proof theory. Unification implements a global bookkeeping with respect to a proof whereas the direct fibring method restricts its view to the atoms of the grammar logic. The solution is to interpret the (embedded) feature terms as global feature constraints while maintaining the same kind of fibred structures. For this adjusted semantics, the anticipated proof system is sound and complete. (shrink)

This three-part chapter explores a higher-order logic we call ‘Classicism’, which extends a minimal classical higher-order logic with further axioms which guarantee that provable coextensiveness is sufficient for identity. The first part presents several different ways of axiomatizing this theory and makes the case for its naturalness. The second part discusses two kinds of extensions of Classicism: some which take the view in the direction of coarseness of grain (whose endpoint is the maximally coarse-grained view that coextensiveness is sufficient for (...) identity), and some which take the view in the direction of fineness of grain (whose endpoint is the maximally fine-grained theory containing all distinctness claims compatible with Classicism). The third part introduces some techniques for constructing models of Classicism, and uses them to prove the consistency of many of the extensions of Classicism introduced in the second part. (shrink)

Most meanings we express belong to large families of variant meanings, among which it would be implausible to suppose that some are much more apt for being expressed than others. This abundance of candidate meanings creates pressure to think that the proposition attributing any particular meaning to an expression is modally plastic: its truth depends very sensitively on the exact microphysical state of the world. However, such plasticity seems to threaten ordinary counterfactuals whose consequents contain speech reports, since it is (...) hard to see how we could reasonably be confident in a counterfactual whose consequent can be true only if a certain very finely tuned microphysical configuration obtains. This essay develops the foregoing puzzle and explores several possible solutions. (shrink)

We present and discuss a counterexample to the following plausible principle: if you know that a coin is fair, and for all you know it is going to be flipped, then for all you know it will land tails.

Presupposing that most predicates do not correspond directly to genuine relations, I argue that all genuine relations are symmetric. My main argument depends on the premise that there are no brute necessities, interpreted so as to require logical and metaphysical necessity to coincide for sentences composed entirely of logical vocabulary and primitive predicates. Given this premise, any set of purportedly primitive predicates by which one might hope to express the facts about non-symmetric relations order their relata will generate an objectionable (...) multiplication of possibilities. In the final section I give a different argument, based on the weaker premise that brute necessities should not be multiplied without necessity. (shrink)

The paper starts by identifying dynamic stabilization as a defining feature of modern societies. This term refers to the fact that such a society requires growth, augmentation and high rates of innovation in order to reproduce its structure and to preserve the socioeconomic and political status quo. The subsequent sections explore the mechanisms and consequences of this mode of social reproduction, proceeding in three steps. First, three key aspects or ‘motors’ of dynamization are identified, namely the mechanisms of appropriation, acceleration (...) and activation. In the second step, we argue that this ‘Triple-A-Mode’ of dynamic stabilization necessarily entails a logic of incessant escalation which eventually threatens to undermine itself, leading to a multifaceted process of destabilization. Unmistakable signs of this can be seen in the current financial, democratic, ecological and psychosocial crises. The third and last part briefly and very preliminarily sketches out the possible contours of a ‘post-growth’ society which could move beyond the current mode of dynamic stabilization. (shrink)

I motivate and briefly sketch a linguistic theory of vagueness, on which the notion of indeterminacy is understood in terms of the conventions of language: a sentence is indeterminate iff the conventions of language either forbid asserting it and forbid asserting its negation, under the circumstances, or permit asserting either. I then consider an objection that purports to show that if this theory (or, as far as I can see, any other theory of vagueness that deserved the label "linguistic" were (...) true, there would be no such thing as indeterminacy. I respond to this objection by arguing on independent grounds against its main premise, the widely-accepted claim that if it is indeterminate whether P, no human being knows whether P. I defend an alternative view according to which, when it is indeterminate whether P, it is often also indeterminate whether we know that P. (shrink)

ZusammenfassungAnhand von Alexander Mitscherlichs Plädoyers für eine Psychosomatische Medizin werden dessen epistemologische Neupositionierungen in den 1940er, 1950er und 1960er Jahren untersucht. Sie eröffnen den Blick auf die Auseinandersetzung von Psychiatern, Internisten und Psychotherapeuten um valides und handlungsrelevantes Wissen in der Nachkriegszeit. Zentral war für Mitscherlich ein Krankheitsverständnis, das der Subjektivität der Patienten einen festen Platz zuwies. Damit verbunden war eine kontinuierliche Kritik an statistischen Verfahren zur Validierung von Einzelbefunden und Hypothesen. Gezeigt wird, wie anpassungsfähig Mitscherlich mit seiner Kritik an einer (...) naturwissenschaftlich orientierten Methodik in der Medizin war, wenngleich er die ursprüngliche Stoßrichtung trotz aller Wandlungen aufrechterhielt. (shrink)

El artículo esboza una economía política de la pandemia del coronavirus. En línea con Fernand Braudel, la peste es interpretada como un “golpe externo” que remite a estructuras de larga data. Detrás de la pandemia y de la recesión que la sigue se esconde una crisis profunda. Ella es consecuencia de la tenaza económico-ecológica que tiene atrapadas a las sociedades del Norte Global. Esta nueva cesura no puede entenderse sin tener en cuenta el crash financiero de 2007-2009 y el interregno (...) político de los años de poscrisis. Según mi tesis, la pandemia y la recesión que la sigue son efectos repulsivos de una hiperglobalización que ha socavado progresivamente sus propios presupuestos. Sin embargo, no puede hablarse de un determinismo del coronavirus. La pandemia no conducirá espontáneamente a un “Build Back Better”. Un cambio de rumbo de este tipo exige alternativas creíbles y claramente delineadas, y, sobre todo, fuerzas sociales y actores políticos que lleven adelante los cambios. Por tanto, con llamamientos generales a las élites no se logra mucho. En lugar de ello, aquí se sugiere un análisis preciso de la tendencia hacia democracias bonapartistas que bloquean la revolución de sustentabilidad. El artículo explora las dificultades de una sociología pública y se expresa a favor de un nuevo orden institucional caracterizado por la democracia económica y la creación de consejos de transformación. (shrink)

According to a tradition stemming from Quine and Putnam, we have the same broadly inductive reason for believing in numbers as we have for believing in electrons: certain theories that entail that there are numbers are better, qua explanations of our evidence, than any theories that do not. This paper investigates how modal theories of the form ‘Possibly, the concrete world is just as it in fact is and T’ and ‘Necessarily, if standard mathematics is true and the concrete world (...) is just as it in fact is, then T’ bear on this claim. It concludes that, while analogies with theories that attempt to eliminate unobservable concrete entities provide good reason to regard theories of the former sort as explanatorily bad, this reason does not apply to theories of the latter sort. (shrink)

We defend three controversial claims about preference, credence, and choice. First, all agents (not just rational ones) have complete preferences. Second, all agents (again, not just rational ones) have real-valued credences in every proposition in which they are confident to any degree. Third, there is almost always some unique thing we ought to do, want, or believe.

David Builes presents a paradox concerning how confident you should be that any given member of an infinite collection of fair coins landed heads, conditional on the information that they were all flipped and only finitely many of them landed heads. We argue that if you should have any conditional credence at all, it should be 1/2.