In many learning or inference tasks human behavior approximates that of a Bayesian ideal observer, suggesting that, at some level, cognition can be described as Bayesian inference. However, a number of findings have highlighted an intriguing mismatch between human behavior and standard assumptions about optimality: People often appear to make decisions based on just one or a few samples from the appropriate posterior probability distribution, rather than using the full distribution. Although sampling-based approximations are a common way to implement Bayesian (...) inference, the very limited numbers of samples often used by humans seem insufficient to approximate the required probability distributions very accurately. Here, we consider this discrepancy in the broader framework of statistical decision theory, and ask: If people are making decisions based on samples—but as samples are costly—how many samples should people use to optimize their total expected or worst-case reward over a large number of decisions? We find that under reasonable assumptions about the time costs of sampling, making many quick but locally suboptimal decisions based on very few samples may be the globally optimal strategy over long periods. These results help to reconcile a large body of work showing sampling-based or probability matching behavior with the hypothesis that human cognition can be understood in Bayesian terms, and they suggest promising future directions for studies of resource-constrained cognition. (shrink)

This paper re-constructs Plato's ‘philosophy of geometry’ by arguing that he uses a geometrical method of hypothesis in his account of the cosmos’ generation in the Timaeus. Commentators on Plato's philosophy of mathematics often start from Aristotle's report in the Metaphysics that Plato admitted the existence of mathematical objects in-between ( metaxu) Forms and sensible particulars ( Meta. 1.6, 987b14–18). I argue, however, that Plato's interest in mathematics was centred on its methodological usefulness for philosophical inquiry, rather than on questions (...) of mathematical ontology. My key passage of interest is Timaeus’ account of the generation of the primary bodies in the cosmos, i.e. fire, air, water and earth ( Tim. 48b–c, 53b–56c). Timaeus explains the primary bodies’ origin by hypothesising two right-angled triangles as their starting-point ( arkhê) and describing their individual geometrical constitution. This hypothetical operation recalls the hypothetical method which Socrates introduces in the Meno (86e–87b), as well as the use of hypotheses by mathematicians which is described in the Republic (510b–c). Throughout the passage, Timaeus is focussed on explicating the bodies in terms of their formal structure, without however considering the ontological status of the triangles in relation to the physical world. (shrink)

_ The Metaphysics of Truth _By EdwardsDouglasOxford University Press, 2018. x + 198 pp.

The consistent histories reformulation of quantum mechanics was developed by Robert Griffiths, given a formal logical systematization by Roland Omn\`{e}s, and under the label `decoherent histories', was independently developed by Murray Gell-Mann and James Hartle and extended to quantum cosmology. Criticisms of CH involve issues of meaning, truth, objectivity, and coherence, a mixture of philosophy and physics. We will briefly consider the original formulation of CH and some basic objections. The reply to these objections, like the objections themselves, involves a (...) mixture of physics and philosophy. These replies support an evaluation of the CH formulation as a replacement for the measurement, or orthodox, interpretation. (shrink)

Preface and Postscript Combining a Preface with a Postscript seems a particularly apposite way to introduce (and conclude) a collection of essays on ...

The foregoing set of theorems forms an effective foundation for the theory of situations and worlds. All twenty-five theorems seem to be basic, reasonable principles that structure the domains of properties, relations, states of affairs, situations, and worlds in true and philosophically interesting ways. They resolve 15 of the 19 choice points defined in Barwise (1989) (see Notes 22, 27, 31, 32, 35, 36, 39, 43, and 45). Moreover, important axioms and principles stipulated by situation theorists are derived (see Notes (...) 33, 37, and 38). This is convincing evidence that the foregoing constitutes a theory of situations. Note that worlds are just a special kind of situation, and that the basic theorems of world theory, which were derived in previous work, can still be derived in this situation-theoretic setting. So there seems to be no fundamental incompatibility between situations and worlds — they may peacably coexist in the foundations of metaphysics. The theory may therefore reconcile two research programs that appeared to be heading off in different directions. And we must remind the reader that the general metaphysical principles underlying our theory were not designed with the application to situation theory in mind. This suggests that the general theory and the underlying distinction have explanatory power, for they seem to relate and systematize apparently unrelated phenomena. (shrink)

This paper is concerned with the relation between two important metaphysical notions, ‘truthmaking’ and ‘grounding’. I begin by considering various ways in which truthmaking could be explicated in terms of grounding, noting both strengths and weaknesses of these analyses. I go on to articulate a problem for any attempt to analyze truthmaking in terms of a generic and primitive notion of grounding based on differences we find among examples of grounding. Finally, I outline a more complex view of how truthmaking (...) and grounding could relate. On the view explored, truthmaking is a species of grounding differentiated from other species of grounding by the unique form of dependence it involves. (shrink)

A superb example of the bookmaker's and translator's art, this new edition of Plato's "Symposium" exhibits aesthetic, literary, and intellectual excellences rarely found together in a single volume.Tom Griffith's translation of this foundation work of Western culture is unsurpassed for the balance it achieves between readability and fidelity to Plato's Greek. For felicity of phrasing, freshness, care to match the sense of the Greek rather than its wording, and for its idiomatic rendering of the spoken word, it has no (...) peer.Originally published in a limited edition with facing Greek and color wood engravings, Griffith's translation is here presented in reduced format that retains the aesthetic quality of the original version at an affordable price. (shrink)

Recent discussions among lawyers, philosophers, policy researchers and athletes have focused on the potential threat to privacy posed by the World Anti-Doping Agency’s (WADA) whereabouts requirements. These requirements demand, among other things, that all elite athletes file their whereabouts information for the subsequent quarter on a quarterly basis and comprise data for one hour of each day when the athlete will be available and accessible for no advance notice testing at a specified location of their choosing. Failure to file one’s (...) whereabouts, or the non-availability for testing at said location on three occasions within any 18-month period constitutes an anti-doping rule violation that is equivalent to testing positive to a banned substance, and may lead to a suspension of the athlete for a time period of between one and two years. We critically explore the extent to which WADA’s whereabouts requirements are in tension with existing legislation on privacy, with respect to UK athletes, who are simultaneously protected by UK domestic and EU law. Both UK domestic and EU law are subject to the European Convention on Human Rights (ECHR) Article 8, which establishes a right to “respect for private and family life, home and correspondence”. We critically discuss the centrality of the whereabouts requirements in relation to WADA’s aims, and the adoption and implementation of its whereabouts rules. We conclude that as WADA’s whereabouts requirements appear to be in breach of an elite athlete’s rights under European workers’ rights, health & safety and data protection law they are also, therefore, in conflict with Article 8 of the ECHR and the UK Human Rights Act 1998. We call for specific amendments that cater for the exceptional case of elite sports labour if the WADA requirements are to be considered legitimate. (shrink)

What happens when we glance around a room? How do we trust what we see in fleeting moments? In The World at a Glance, Edward S. Casey describes how glancing counts for more of human perception than previously imagined. An entire universe is perceived in a glance, but our quick and uncommitted attention prevents examination of these rapid acts and processes. While breaking down this paradox, Casey surveys the glance as an essential way by which we acquaint ourselves with (...) the world. This experiential tour-de-force reveals what happens in a blink of an eye. It will become a landmark study in phenomenology, philosophy, environmental philosophy, and the philosophy of mind. (shrink)

The concept of epistemic injustice is the latest philosophical tool with which to try to theorise what goes wrong when mental health service users are not listened to by clinicians, and what goes right when they are. Is the tool adequate to the task? It is argued that, to be applicable at all, the concept needs some adjustment so that being disbelieved as a result of prejudice is one of a family of alternative necessary conditions for its application, rather than (...) a necessary condition all on its own. It is then argued that even once adjusted in this way, the concept does not fit well in the area where the biggest efforts have been made to apply it so far, namely the highly sensitive case of adult patients suffering from delusions. Indeed it does not serve the interests of service users struggling for recognition to try to apply it in this context, because there is so much more to being listened to than simply being believed. However, the concept is found to apply smoothly in many cases where the service users are children, for example, in relation to children’s testimony on the efficacy of treatment. It is suggested that further research would demonstrate the usefulness of the concept in adult cases of a similar kind. There are no data in this work. (shrink)

In the course of his long development, Kant's concept of matter changed somewhat, while his concept of scientific explanation changed considerably. Both developments achieved a coherent integration in Kant's Metaphysical Foundations of Natural Science. Using this developmental background, the present paper argues that the Foundations should be interpreted as an attempted rational reconstruction of the mechanics of Newton and Euler. Kant attempted to do this by constructing a concept of matter that would confer a Leibnizian intelligibility on Newtonian mechanics, and (...) also accord with Kant's theories on the nature of concepts and their role in scientific explanation. (shrink)

This original book brings together some of the world's leading critics of economics orthodoxy to debate Lawson's contribution to the economics literature.

This book is a treatise on time and on background independence in physics. It first considers how time is conceived of in each accepted paradigm of physics: Newtonian, special relativity, quantum mechanics (QM) and general relativity (GR). Substantial differences are moreover uncovered between what is meant by time in QM and in GR. These differences jointly source the Problem of Time: Nine interlinked facets which arise upon attempting concurrent treatment of the QM and GR paradigms, as is required in particular (...) for a background independent theory of quantum gravity. A sizeable proportion of current quantum gravity programs - e.g. geometrodynamical and loop quantum gravity approaches to quantum GR, quantum cosmology, supergravity and M-theory - are background independent in this sense. This book's foundational topic is thus furthermore of practical relevance in the ongoing development of quantum gravity programs. This book shows moreover that eight of the nine facets of the Problem of Time already occur upon entertaining background independence in classical (rather than quantum) physics. By this development, and interpreting shape theory as modelling background independence, this book further establishes background independence as a field of study. Background independent mechanics, as well as minisuperspace (spatially homogeneous) models of GR and perturbations thereabout are used to illustrate these points. As hitherto formulated, the different facets of the Problem of Time greatly interfere with each others' attempted resolutions. This book explains how, none the less, a local resolution of the Problem of Time can be arrived at after various reconceptualizations of the facets and reformulations of their mathematical implementation. Self-contained appendices on mathematical methods for basic and foundational quantum gravity are included. Finally, this book outlines how supergravity is refreshingly different from GR as a realization of background independence, and what background independence entails at the topological level and beyond. (shrink)

avant propos This paper is basically Keenan (1992) augmented by some new types of properly polyadic quantification in natural language drawn from Moltmann (1992), Nam (1991) and Srivastav (1990). In addition I would draw the reader's attention to recent mathematical studies of polyadic quantiicationz Ben-Shalom (1992), Spaan (1992) and Westerstahl (1992). The first and third of these extend and generalize (in some cases considerably) the techniques and results in Keenan (1992). Finally I would like to acknowledge the stimulating and constructive (...) discussions ofthe earlier paper with many scholars, notably Dorit Ben-Shalom, Jaap van der Does, Hans Kamp, Uwe Mormich, Arnim von Stechow, Mats Rooth, and Ede Zimmermann. And I repeat here the acknowledgment in the earlier paper to Jim Lambek, Ed Stabler and two anonymous referees for Linguistics and Philosophy (the latter responsible for substantial improvements in the proofs - see footnote 10). (shrink)

Theologies of divine action in nature have sought to maximize traction with the sciences to secure their credibility. While varying in significant ways, all extant proposals share a commitment to physical realism, the claim that (at least some) physical entities and facts are both mind‐independent and ontologically basic within creation. However, I will argue that this metaphysical commitment undermines the body of scientific knowledge to which theologians wish to be responsive. Is there an alternative? Building on the work of Howard (...) Robinson, I will show that there is a coherent account of mind's place in nature that denies physical realism. Such an account would enable a theological description of God's sustaining and governing action in nature through the ontological mediation of minds and laws causally constraining their sensations. Furthermore, this proposal yields a positive research program that makes essential use of the contributions of the natural sciences to understand the nature of embodiment. (shrink)

Our synthetic review of the relevant and related literatures on the ethics and effects of using AI in education reveals five qualitatively distinct and interrelated divides associated with access, representation, algorithms, interpretations, and citizenship. We open our analysis by probing the ethical effects of algorithms and how teams of humans can plan for and mitigate bias when using AI tools and techniques to model and inform instructional decisions and predict learning outcomes. We then analyze the upstream divides that feed into (...) and fuel the algorithmic divide, first investigating access and then representation. After that, we analyze the divides that are downstream of the algorithmic divide associated with interpretation and citizenship. At present, lacking ongoing reflection and action by learners, educators, educational leaders, designers, scholars, and policymakers, the five divides collectively create a vicious cycle and perpetuate structural biases in teaching and learning. However, increasing human responsibility and control over these divides can create a virtuous cycle that improves diversity, equity, and inclusion in education. We conclude the article by looking forward and discussing ways to increase educational opportunity and effectiveness for all by mitigating bias through a cycle of progressive improvement. (shrink)

Identifying plausible truthmakers for negative truths has been a serious and perennial problem for truthmaker theory. I argue here that negative truths are indeed made true but not in the way that positive truths are. I rely on a distinction between “existence-independence” and “variation-independence” drawn by Hoffman and Horvath to characterize the unique form of dependence negative truths exhibit on reality. The notion of variation-independence is then used to motivate a principle of truthmaking for contingent negative truths.

I propose a solution to the paradox of the kalela dance, as presented by Richard Werbner, based on a variety of liberalism I once identified.

This paper explicates secular psychodynamic growth through the life time and meditation as routes to the transpersonal from the perspective of evolutionary developmental biology, based around a multi-line model of growth. A multi-line model raises many significant points for a transpersonal audience. Such models have been pioneered by Hunt. When set on the footing of evolutionary developmental biology and nonlinear dynamics these kind of models become all the more cogent, penetrating and far reaching, validating plurality and diversity in both the (...) process and final form of transpersonal development. The "anecdotal" accounts which Hunt reports, and which this paper adds to, can thus be amalgamated with an established and sophisticated research program . Such developments are symptomatic of a general movement in the sciences towards a non-linear paradigm, to which the transpersonal movement might have been slow to respond. (shrink)

This paper concerns the ontological status of ontological categories (e.g., universal, particular, substance, property, relation, kind, object, etc.). I consider E.J. Lowe’s argument for the view that ontological categories do not exist and point out that it has some undesirable consequences for his realist ontology. I go on to argue that the main premise in Lowe’s argument—that ontological categories cannot be categorized—is false and then develop a conception of ontological categories as formal ontological kinds.

The author examines the differences between the general intensional logic defined in his recent book and Montague's intensional logic. Whereas Montague assigned extensions and intensions to expressions (and employed set theory to construct these values as certain sets), the author assigns denotations to terms and relies upon an axiomatic theory of intensional entities that covers properties, relations, propositions, worlds, and other abstract objects. It is then shown that the puzzles for Montague's analyses of modality and descriptions, propositional attitudes, and directedness (...) towards nonexistents can be solved using the author's logic. (shrink)

A. Plantinga develops a challenging critique of Castañeda's guise theory, by identifying fundamental intuitions that guise theory gives up and by developing several objections to the guise-theoretic world view as a whole. In this paper, I examine whether Plantinga's criticisms apply to the theory of abstract objects. The theory of abstract objects and guise theory can be fruitfully compared because they share a common intellectual heritage---both follow Ernst Mally [1912] in postulating a special realm of objects distinguished by their "internal" (...) or "encoded" properties. Despite this common heritage, however, the theories organize, develop, and apply these special objects in distinctive ways. The two metaphysical systems, therefore, differ significantly, and these differences become important when one considers Plantinga's critique of guise theory. In this essay, the author shows that the theory of abstract objects anticipates and addresses most of Plantinga's concerns about guise theory, by preserving intuitions guise theory has abandoned. (shrink)

Turning to history has always been an important tool for understanding international relations, and this trend remains relevant today. However, if earlier researchers mainly focused on individual events and their possible interpretations, now the main attention is focused on determining the historical characteristics of systems and reflecting this legacy in modern international relations. That is why the postcolonial approach, focused on the gradual evolution of colonial relations into the modern system of international relations, has become especially important; postmodernism is used (...) to explain the concept of postcolonialism. In these concepts, an important place is occupied by the terms colonialism and postcolonialism, which seem to be a continuation of each other, despite the fact that they oppose each other. This article explains some of these concepts. Looking at the development and theoretical history of the concept of postcolonialism, it can be concluded that the concept was first used by Edward Said in his work entitled “Orientalism”. In Edward Said's “Orientalism” (1978) [Said, 1978], although many derivative terms from the concepts of colonialism and imperialism are used, the word postcolonialism does not appear even once in this work. No less important than Edward Said's research into the consolidation of postcolonialism as a concept is Subaltern Studies, first developed by Indian Marxist historians in 1982. Thus, although postcolonialism has not yet reached its final form in terms of naming, thanks to the book "The Empire Writes Back" [Ashcroft, Griffiths, & Tiffin, 1989] published in 1989, today both the term and the theoretical concept are used in modern scientific circles. (shrink)

We applaud the ambition of Veissière et al.'s account of cultural learning, and the attempt to ground higher order thinking in embodied theory. However, the account is limited by loose terminology, and by its commitment to a view of the child learner as inference-maker. Vygotsky offers a more powerful view of cultural learning, one that is fully compatible with embodiment.

This article clarifies Bohr's position by focusing on the work he did in nuclear physics and scattering theory.

The modal object calculus is the system of logic which houses the (proper) axiomatic theory of abstract objects. The calculus has some rather interesting features in and of itself, independent of the proper theory. The most sophisticated, type-theoretic incarnation of the calculus can be used to analyze the intensional contexts of natural language and so constitutes an intensional logic. However, the simpler second-order version of the calculus couches a theory of fine-grained properties, relations and propositions and serves as a framework (...) for defining situations, possible worlds, stories, and fictional characters, among other things. In the present paper, we focus on the second-order calculus. The second-order modal object calculus is so-called to distinguish it from the second-order modal predicate calculus. Though the differences are slight, the extra expressive power of the object calculus significantly enhances its ability to resolve logical and philosophical concepts and problems. (shrink)

This dissertation extends John Rawls’s mature theory of justice out to address the environmental challenges that citizens of liberal democracies now face. Specifically, using Rawls’s framework of political liberalism, I piece together a theory of procedural justice to be applied to a constitutional democracy. I show how citizens of pluralistic democracies should apply this theory to environmental matters in a four stage contracting procedure. I argue that, if implemented, this extension to Rawls’s theory would secure background environmental justice. I explain (...) why the theory can be viewed as a partially specified political conception of environmental pragmatism, and how it relates to public environmental policy and discourse. While the framework is anthropocentric, it is one that reasonable non-anthropocentrists can endorse. Using this theory, I argue that liberal democracies must take measures to secure basic environmental rights for all presently existing and future citizens. Measures must also be in place to secure a minimum of social goods (including environmental goods) that guarantees that all citizens (present and future) can exercise their basic rights and liberties. Moreover, disparities in environmental goods should only be tolerated if they arise in accord with Rawls’s principle of fair equality of opportunity. I discuss carbon taxes, as well as carbon allocation trading schemes. I also argue that free democracies should employ precautionary reasoning when attempting to meet the demands of background environmental justice. (shrink)

In 1759, at the height of the Seven Years' War, when Great Britain was suffering a series of military reversals, Montagu considered his country's plight in an historical context formed by the study of five ancient republics: Sparta, Athens, Thebes, Carthage, and Rome. Montagu's focus on the ancient republics gives his contribution a distinctive twist to the chorus of voices lamenting Britain's decline, and his analysis exerted influence in three momentous eighteenth-century crises: the Seven Years' War, the American War of (...) Independence, and the French Revolution. This is the first modern edition of Montagu's work. Edward Wortley Montagu (1713 -1776) was the son of a wealthy British Ambassador to the Ottoman Empire and of Lady Mary Wortley Montagu. He was a student of oriental languages at the University of Leiden, which apparently proved useful during the peace negotiations at Aix-la-Chapelle which concluded the War of the Austrian Succession in 1748. David Womersley is the Thomas Warton Professor of English Literature at the University of Oxford. He has published widely on English literature from the early sixteenth to the early nineteenth centuries. He is the editor of Jonathan Swift's Gulliver's Travels (2012) for Cambridge University Press. (shrink)

The ethical considerations of insider trading have been widely debated in the academic literature :171–182, 1990). In 2013, the STOCK Act, which was initially passed to mitigate insider trading by government officials, was quickly and unexpectedly amended to allow certain government employees to withhold their financial information. To identify and quantify the potential costs placed on investors by non-corporate insider traders, we use the unusual circumstances surrounding this amendment. For a sample of stocks most held by members of Congress, we (...) find that, relative to control stocks, liquidity significantly worsens and volatility increases during the post-amendment period. Our results highlight the costs that are incurred by investors in the presence of non-corporate insider trading. These findings call for a stronger development of an ethical framework that justifies the restriction of all types of insider trading. (shrink)