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Publication Mereology, Ideology, and Formal Ontology(2024-09) Schechter, SamuelWe often say that things are parts of others things. My hand is a part of me. New York State is a part of the U.S. The goalie is a part of the team. The letter 'a' is a part of the word 'and'. We also say that some objects are composed of others. My body is composed of my foot, my mouth, and so on; the U.S. is composed of 50 states and some territories. The team is composed of players, coaches, and staff. The word 'and' is composed of three letters: 'a', 'n' and 'd'. The study of relations like parthood and composition is known as mereology. The central task of mereology is to understand when and how objects are built from other objects. Agreement in mereology, however, does not seem forthcoming. And this isn't just your run-of-the-mill philosophical stubbornness. Case in point: some mereologists think of parthood as a logical notion akin to conjunction; others as a physical notion akin to having mass. Moreover, the former often accuse the latter of being conceptually confused: one mereologist's conceptual truth turns out to be another's contingent falsehood. Thus, mereological disputes have become the poster child for metaphysical anti-realism. Anti-realism or not, though, it is hard to shake the feeling that there is something fundamentally misguided about mereological inquiry. Accordingly, this dissertation engages in what may as well be called metamereology. It aims to answer questions like: what are we doing when we do mereology? How can we make progress on notoriously stubborn mereological disputes? What, if anything, turns on the resolution of such disputes? The first half constitutes the negative thrust of the project. There, I aim to identify and overcome obstacles to productive mereological discussion. In doing so, I hope to clarify exactly what is at stake in traditional mereological debates. The second half constitutes the positive thrust. In particular, I offer a proof-of-concept of how I believe mereological inquiry should proceed. The approach I suggest is a fairly holistic one that places the theoretical work that mereology can do in our best theories front and center. In particular, chapters five and six explore the role of mereology from the perspective of a generally Humean approach to metaphysics.Publication The Structure of Consciousness(2013-09) Friesen, Lowell KeithIn this dissertation, I examine the nature and structure of consciousness. Conscious experience is often said to be phenomenally unified, and subjects of consciousness are often self-conscious. I ask whether these features necessarily accompany conscious experience. Is it necessarily the case, for instance, that all of a conscious subject's experiences at a time are phenomenally unified? And is it necessarily the case that subjects of consciousness are self-conscious whenever they are conscious? I argue that the answer to the former is affirmative and the latter negative. In the first chapter, I set the stage by distinguishing phenomenal unity from other species of conscious unity. A pair of conscious states is phenomenally unified if they are experienced together as part of a single experience that encompasses them both. In this and the next two chapters I defend the thesis that, necessarily, for any subject (of conscious mental states) at any time, all of that subject's conscious mental states (at that time) are part of a single, maximal state of consciousness. I call this thesis the "Unity Thesis." I proceed by considering some preliminary questions that might be raised about the Unity Thesis. For instance, the thesis presupposes that it is coherent to talk about parts of mental states. I consider objections by Tye and Searle and argue that the notion of an experiential part is unproblematic. In the remaining pages of the chapter, I present the source of the biggest challenge to the Unity Thesis: the data gathered from split-brain subjects. The Unity Thesis is formulated using the notion of a maximal state of consciousness. In the second chapter, I attempt to precisify this notion in a way that does not pre-emptively decide the debate over the Unity Thesis. In informal terms, a maximal state of consciousness is a sum of conscious states that are i) simultaneous, ii) have the same subject, and iii) all have a conjoint phenomenology. I call this the Consensus View. I then consider two unorthodox views that the Consensus View does not take off the table: the views that a "collective consciousness" and a "spread consciousness" are possible. A collective subject is one that can enjoy the experiences of an indeterminate number of "lesser" subjects of consciousness by sharing them together with those subjects. A spread subject is one that can enjoy the experiences of an indeterminate number of lesser subjects of consciousness, but it does so, not by sharing those experiences with the lesser subjects, but by absorbing the lesser subjects of experience into itself, thereby erasing the traditional boundaries between the entities we intuitively think of as subjects of experience. I argue that, although the Consensus View does not decide against them, these views stretch the bounds of coherence and should not, therefore, be accepted. Having presented an account of what maximal state of consciousness is, I define a stream of consciousness in terms of a maximal states of consciousness. In the rest of chapter two, I consider and argue against a number of different ways of interpreting the split-brain data that are either inconsistent with the Unity Thesis or attribute more than one subject of consciousness to split-brain subjects. Among the views I consider are Lockwood's partial-unity view and the views, by theorists such as Sperry, Koch, Puccetti, Marks, and Tye, that split-brain subjects have two non-overlapping streams of consciousness. In chapter three, I consider a recent attempt by Bayne to account for the split-brain data in a way that does not attribute two streams of consciousness to them. According to Bayne's Switch Model, the consciousness of split-brain subjects can be likened to that of a ball that is passed back and forth between the two hemispheres of the upper-brain. The hemispheres take turns supporting a single stream of consciousness. I consider the empirical data in some detail and argue that the data is not as compatible with the Switch Model as Bayne claims. I close the chapter by presenting the rough outline of an interpretation of the split-brain data that is consistent with both the Unity Thesis and the split-brain data. In chapter four, I turn from defending the Unity Thesis to examining an attempt to account for conscious unity. Rosenthal has offered a theory of conscious unity as an extension of his higher-order theory of consciousness. I consider his account of conscious unity in light of a well-known objection to his theory: the (Representational) Mismatch Objection. It can be asked what it is like for a subject of experience when a higher-order state misrepresents its target first-order state. If what it is like for the subject corresponds to the content of the higher-order state, then it appears as though higher-order representation is unnecessary for conscious experience, for it would appear as though it is possible for a state to be conscious without being represented by a higher-order state. If what it is like corresponds to the content of the lower-order state, then it would again seem as though representation at the higher-order level is unnecessary for conscious experience, for the higher-order state would not seem to be doing any work in generating the experience. I consider and argue against two recent defences of Rosenthal's higher-order theory from the Mismatch Objection. Then I turn to Rosenthal's account of conscious unity. Rosenthal's account posits two mental mechanisms. I refer to the ways of accounting for conscious unity via these two mechanisms as the "gathering strategy" and the "common-ascription strategy" respectively. Both of these strategies, I argue, appear to locate the basis for certain phenomenal facts in higher-order representational facts. This raises a prima facie question: does Rosenthal's account of conscious unity land him square within the sights of the Mismatch Objection? Although the gathering strategy may ultimately be understood in a way that does not make it subject to the Mismatch Objection, Rosenthal has certain commitments that bar this strategy from serving as a complete account of conscious unity. This is problematic for Rosenthal, I argue, because his common-ascription strategy faces some difficult questions. This strategy makes conscious unity due to an implicit expectation a subject of consciousness has that, whenever he or she engages in introspection, an explicit sense of conscious unity will be generated. I argue that it is very difficult to see how such an implicit sense could both avoid the Mismatch Objection and do the work it needs to do in order to account for conscious unity. In chapter five, the discussion turns from the unity of consciousness to self-consciousness. The question that is considered in this and the last chapter is the question whether conscious experience is necessarily accompanied by self-consciousness. The affirmative answer to this question I call the Ubiquity Thesis. I spend some time distinguishing robust conceptions of self-consciousness from minimal conceptions of self-consciousness. The notion of self-consciousness invoked by the Ubiquity Thesis is a minimal one. In spite of the fact that the Ubiquity Thesis invokes only a minimal or thin conception of self-consciousness, I believe the thesis to be false and argue against it. In this chapter I take up the views of Husserl. Husserl is often regarded as the progenitor of the phenomenological tradition, a tradition in which many philosophers affirm the Ubiquity Thesis. I examine and argue against an interpretation of Husserl's work, one defended by Zahavi, according to which Husserl could be seen to defend the Ubiquity Thesis. One claim that Husserl makes is that, in order for an object to become the intentional target of a conscious state, it must be given to consciousness beforehand. It is possible, during acts of deliberate introspection, for consciousness to take itself as its object. On Husserl's view, this requires consciousness to be given to itself beforehand. This self-givenness of consciousness, argues Zahavi, can be seen as a kind of minimal self-consciousness. Husserl has also offered an account of this self-givenness of consciousness and it appears in his discussion of inner time-consciousness. I attempt to argue, using some of Husserl's other views regarding psychological stances (or standpoints), that consciousness is not given to itself outside of the adoption of a certain psychological standpoint. I also offer an alternative way of accounting for inner time-consciousness, one that does not have, as a built-in feature, that consciousness always has itself as a secondary object. In the sixth and final chapter, I take up a contemporary defence of the Ubiquity Thesis. Kriegel, a higher-order theorist like Rosenthal, has argued that every conscious state is conscious in virtue of the fact that it represents itself. This self-representation is understood as a kind of self-consciousness and, thus, his theory can be seen as affirming the Ubiquity Thesis. In the first part of the chapter, I take issue with the way in which Kriegel lays out the conceptual terrain. In particular, Kriegel countenances a property he calls "intransitive state self-consciousness." I argue that this way of speaking is confused. I then turn to considering Kriegel's account. Kriegel identifies the species of self-consciousness that pervades all of conscious experience with a peripheral awareness of one's own mental states. I argue that such a peripheral inner awareness does not accompany all of our mental states and, thus, that Kriegel's views do not give us reason to accept the Ubiquity Thesis.Publication Counterpossibles(2012-02) Krakauer, BarakCounterpossibles are counterfactuals with necessarily false antecedents. The problem of counterpossibles is easiest to state within the "nearest possible world" framework for counterfactuals: on this approach, a counterfactual is true (roughly) when the consequent is true in the "nearest" possible world where the antecedent is true. Since counterpossibles have necessarily false antecedents, there is no possible world where the antecedent is true. On the approach favored by Lewis, Stalnaker, Williamson, and others, counterpossibles are all trivially true. I introduce several arguments against the trivial approach. First, it is counter-intuitive to think that all counterpossibles are true. Second, if all counterpossibles were true, then we could not make sense of their use in logical, philosophical, or mathematical arguments. Making sense of the role of sentences like these requires that they not have vacuous truth conditions. The account of counterpossibles I ultimately favor is an extension of the "nearest possible world" semantics discussed above. The Lewis/Stalnaker account is supplemented with the addition of impossible worlds, and the nearness metric is extended to range over these impossible worlds as well as possible worlds. Thus, a counterfactual is true when its consequent is true in the nearest world where the antecedent is true; if the counterfactual's antecedent is impossible, then the nearest world in question will be an impossible world. Once the framework of impossible worlds and similarity is in place, we can put it to use in the analysis of other philosophical phenomena. I examine one proposal that makes use of a theory of counterpossibles to develop an analysis of the notion of metaphysical dependence.Publication Self-Knowledge in a Natural World(2012-02) Cushing, JeremyIn this dissertation, I reconcile our knowledge of our own minds with philosophical naturalism. Philosophers traditionally hold that our knowledge of our own minds is especially direct and authoritative in comparison with other domains of knowledge. I introduce the subject in the first chapter. In the second and third chapters, I address the idea that we know our own minds directly. If self-knowledge is direct, it must not be grounded on anything more epistemically basic. This creates a puzzle for all epistemologists. For the naturalist, the puzzle is especially tricky. To say that self-knowledge has no epistemic ground threatens the naturalist's ability to understand it as psychologically real. I argue that the idea that self-knowledge is direct is not well motivated and that models of direct self-knowledge have fundamental problems. In the fourth and fifth chapters, I examine first-person authority. I distinguish between epistemic authority, or being in a better position than others to know, and non-epistemic authority, or being immune to challenge according to some conventional norm. I argue that we have only limited epistemic authority over our own minds. I then consider whether there may be an interesting non-epistemic authority attached to the first-person perspective. This would locate first-person authority in connection with our responsibility for our own minds. I argue that this sort of authority may exist, but is unlikely to threaten naturalism without further anti-naturalist commitments in the philosophy of mind. In the final two chapters, I explore the possibility that the underlying disagreements between naturalists and anti-naturalists are about the nature of belief. I consider what failures of self-knowledge might demonstrate about the nature of belief. I show how, with the proper understanding of belief, a theory of self-knowledge can assuage some of these worries. Having adopted a conception of belief that makes sense for philosophy and empirical psychology, I outline a positive theory of self-knowledge and suggest directions for future research.Publication Identity and the Limits of Possibility(2011-09) Cowling, SamPossibilities divide into two kinds. Non-qualitative possibilities are distinguished by their connection to specific individuals. For example, the possibility that Napoleon is a novelist is non-qualitative, since it is a possibility for a specific individual, Napoleon. In contrast, the possibility that someone---anyone at all---is a novelist is a qualitative possibility, since it does not depend upon any specific individual. Haecceitism is a thesis about the relation between qualitative and non-qualitative possibilities. In one guise, it holds that some maximal possibilities---total ways the world could be---differ non-qualitatively without differing qualitatively. It would, for example, be only a haecceitistic difference that distinguishes actuality from a maximal possibility where Napoleon and Nefertiti swap all of their qualitative properties and relations. According to this alternative possibility, things are the very same qualitatively, but which individuals occupy which qualitative roles differs: Nefertiti would be a stout conqueror, while Napoleon would be a beautiful consort. This dissertation is an examination of the nature of haecceitism, the arguments in its favor, and the consequences that follow from it. In Chapter One, I distinguish various conceptions of haecceitism and related theses concerning maximal possibilities, possible worlds, the identity of indiscernibles, and non-qualitative properties. In Chapter Two, I develop and defend conceivability arguments for haecceitism in the face of various anti-haecceitist challenges. In Chapter Three, I consider the relation between haecceitism and the Humean approach to plenitude, which aims to characterize the space of possible worlds in terms of combinatorial principles. In Chapter Four, I examine the distinction between qualitative properties like redness and non-qualitative properties like being Napoleon and argue in favor of fundamental non-qualitative properties. In Chapter Five, I present a novel version of non-qualitative counterpart theory, which employs bare particulars to reconcile modal realism and haecceitism. In Chapter Six, I clarify and defend quidditism, the property-theoretic analogue of haecceitism. I conclude in Chapter Seven by defending the modal view of essence.Publication Pyrrhonian and Naturalistic Themes in the Final Writings of Wittgenstein(2011-02) Bhattacharjee, IndraniThe following inquiry pursues two interlinked aims. The first is to understand Wittgenstein's idea of non-foundational certainty in the context of a reading of On Certainty that emphasizes its Pyrrhonian elements. The second is to read Wittgenstein's remarks on idealism/radical skepticism in On Certainty in parallel with the discussion of rule-following in Philosophical Investigations in order to demonstrate an underlying similarity of philosophical concerns and methods. I argue that for the later Wittgenstein, what is held certain in a given context of inquiry or action is a locally transcendental condition of the inquiry or action in question. In On Certainty, Wittgenstein's analysis of the difference between knowledge and certainty forms the basis of his critique of both Moore's "Proof" and radical skepticism. This critique takes the shape of rejection of a presupposition shared by both parties, and utilizes what I identify as a Pyrrhonian-style argument against opposed dogmatic views. Wittgenstein's method in this text involves describing epistemic language-games. I demonstrate that this is consistent with the rejection of epistemological theorizing, arguing that a Wittgensteinian "picture" is not a theory, but an impressionistic description that accomplishes two things: (i) throwing into relief problems with dogmatic theories and their presuppositions, and (ii) describing the provenance of linguistic and epistemic practices in terms of norms grounded in convention. Convention, in turn, is not arbitrary, but grounded in the biological and social natures of human beings--in what Wittgenstein calls forms of life. Thus there is a kind of naturalism in the work of the later Wittgenstein. It is a naturalism that comes neatly dovetailed with Pyrrhonism--a combination of strategies traceable to Hume's work in the Treatise. I read Hume as someone who develops the Pyrrhonian method to include philosophy done "in a careless manner," and argue that Wittgenstein adopts a similar method in his later works. Finally, I explain the deference to convention in the work of both Hume and Wittgenstein by reference to a passage in Sextus' Outlines, on which I provide a gloss in the final chapter of this work.Publication On Epistemic Agency(2010-09) Ahlstrom, Kristoffer HansEvery time we act in an effort to attain our epistemic goals, we express our epistemic agency. The present study argues that a proper understanding of the actions and goals relevant to expressions of such agency can be used to make ameliorative recommendations about how the ways in which we actually express our agency can be brought in line with how we should express our agency. More specifically, it is argued that the actions relevant to such expressions should be identified with the variety of actions characteristic of inquiry; that contrary to what has been maintained by recent pluralists about epistemic value, the only goal relevant to inquiry is that of forming true belief; and that our dual tendency for bias and overconfidence gives us reason to implement epistemically paternalistic practices that constrain our freedom to exercise agency in substantial ways. For example, we are often better off by gathering only a very limited amount of information, having our selection of methods be greatly restricted, and spending our time less on reflecting than on simply reading off the output of a simple algorithm. In other words, when it comes to our freedom to express epistemic agency, more is not always better. In fact, less is often so much more.Publication Bayesian Epistemology and Having Evidence(2010-09) Dunn, JeffreyBayesian Epistemology is a general framework for thinking about agents who have beliefs that come in degrees. Theories in this framework give accounts of rational belief and rational belief change, which share two key features: (i) rational belief states are represented with probability functions, and (ii) rational belief change results from the acquisition of evidence. This dissertation focuses specifically on the second feature. I pose the Evidence Question: What is it to have evidence? Before addressing this question we must have an understanding of Bayesian Epistemology. The first chapter argues that we should understand Bayesian Epistemology as giving us theories that are evaluative and not action-guiding. I reach this verdict after considering the popular ‚Äòought‚Äô-implies-‚Äòcan‚Äô objection to Bayesian Epistemology. The second chapter argues that it is important for theories in Bayesian Epistemology to answer the Evidence Question, and distinguishes between internalist and externalist answers. The third and fourth chapters present and defend a specific answer to the Evidence Question. The account is inspired by reliabilist accounts of justification, and attempts to understand what it is to have evidence by appealing solely to considerations of reliability. Chapter 3 explains how to understand reliability, and how the account fits with Bayesian Epistemology, in particular, the requirement that an agent‚Äôs evidence receive probability 1. Chapter 4 responds to objections, which maintain that the account gives the wrong verdict in a variety of situations including skeptical scenarios, lottery cases, scientific cases, and cases involving inference. After slight modifications, I argue that my account has the resources to answer the objections. The fifth chapter considers the possibility of losing evidence. I show how my account can model these cases. To do so, however, we require a modification to Conditionalization, the orthodox principle governing belief change. I present such a modification. The sixth and seventh chapters propose a new understanding of Dutch Book Arguments, historically important arguments for Bayesian principles. The proposal shows that the Dutch Book Arguments for implausible principles are defective, while the ones for plausible principles are not. The final chapter is a conclusion.Publication Sleeping Beauty and De Nunc Updating(2010-05) Kim, NamjoongAbout a decade ago, Adam Elga introduced philosophers to an intriguing puzzle. In it, Sleeping Beauty, a perfectly rational agent, undergoes an experiment in which she becomes ignorant of what time it is. This situation is puzzling for two reasons: First, because there are two equally plausible views about how she will change her degree of belief given her situation and, second, because the traditional rules for updating degrees of belief don't seem to apply to this case. In this dissertation, my goals are to settle the debate concerning this puzzle and to offer a new rule for updating some types of degrees of belief. Regarding the puzzle, I will defend a view called "the Lesser view," a view largely favorable to the Thirders' position in the traditional debate on the puzzle. Regarding the general rule for updating, I will present and defend a rule called "Shifted Jeffrey Conditionalization." My discussions of the above view and rule will complement each other: On the one hand, I defend the Lesser view by making use of Shifted Jeffrey Conditionalization. On the other hand, I test Shifted Jeffrey Conditionalization by applying it to various credal transitions in the Sleeping Beauty problem and revise that rule in accordance with the results of the test application. In the end, I will present and defend an updating rule called "General Shifted Jeffrey Conditionalization," which I suspect is the general rule for updating one's degrees of belief in so-called tensed propositions.Publication Human Freedom in a World Full of Providence: An Ockhamist-Molinist Account of the Compatibility of Divine Foreknowledge and Creaturely Free Will(2010-02) Kosciuk, Christopher JI defend the compatibility of the classical theistic doctrine of divine providence, which includes infallible foreknowledge of all future events, with a libertarian understanding of creaturely free will. After setting out the argument for theological determinism, which purports to show the inconsistency of foreknowledge and freedom, I reject several responses as inadequate and then defend the ‚Ockhamist‛ response as successful. I further argue that the theory of middle knowledge or ‚Molinism‛ is crucial to the viability of the Ockhamist response, and proceed to defend Molinism against the most pressing objections. Finally, I argue that a proper understanding of the Creator-creature relationship accounts for why no explanation can be given for how God’s middle knowledge comes about.Publication Phenomenal Acquaintance(2009-09) Trogdon, KellyChapter 1 of Phenomenal Acquaintance is devoted to taking care of some preliminary issues. I begin by distinguishing those states of awareness in virtue of which we’re acquainted with the phenomenal characters of our experiences from those states of awareness some claim are at the very nature of experience. Then I reconcile the idea that experience is transparent with the claim that we can be acquainted with phenomenal character. In Chapter 2 I set up a dilemma that is the primary focus of the dissertation. In the first part of this chapter I argue that phenomenal acquaintance has three key features, what I call its ‘directness’, ‘thickness’, and ‘infallibility’. In the second part I argue, however, that it’s really quite puzzling how thoughts about phenomenal character (or any thoughts, for that matter) could have them. In the next two chapters I consider how we might resolve the dilemma described above. I begin in Chapter 3 by considering an account of phenomenal acquaintance inspired by Bertrand Russell’s discussion of acquaintance. The general idea here is to excise mental representation from phenomenal acquaintance, and I ultimately reject the proposal. Chapter 4 is the core chapter of Phenomenal Acquaintance. In it I propose an account of phenomenal acquaintance that doesn’t excise mental representation. My account is comprised of three theses. First, token experiences are complex and have instances of phenomenal properties as components. Second, instances of phenomenal properties are mental representations, and they represent themselves. Third, the attention relevant to phenomenal acquaintance is underwritten by self-representation. I argue that my account explains how phenomenal acquaintance is direct, thick, and infallible, thereby resolving our dilemma. I argue in Chapter 5 that my account of phenomenal acquaintance explains why there is an explanatory gap between the phenomenal and non-phenomenal truths. Accordingly, I conclude that the explanatory gap doesn’t pose a problem for physicalism. Here I implement what has come to be called the ‘phenomenal concept strategy’ for responding to the challenge posed by the explanatory gap.Publication Norms for Bayesians(2017-05) Cassell, LisaBayesian epistemology provides formal norms that govern our degrees of belief both at a time and over time. It tells us that our degrees of belief ought to obey the probability axioms. It tells us that, when we get evidence, we ought to revise our beliefs in accordance with our conditional probabilities. Bayesianism can be made compatible with the norms for evidence that traditional epistemology has to offer us. But the question of whether Bayesianism itself implies some norm for evidence has never been addressed. This dissertation considers this question and develops two new Bayesian updating rules as a response to it. These rules refine the requirements that Bayesianism already provides us with by supplementing these requirements with two formal accounts of evidence. In chapter two, I set some of the groundwork for the dissertation by comparing the problem of how evidence, and the experience that gives rise to it, constrain an update to two problems in the Bayesian literature that have similar structures, but that are better understood. In chapters three and four, I look at some places where the literature has foundered on the lack of an account of evidence. I consider two discussions that illustrate how the lack of a constraint on how experience gives rise to an update causes us to see problems where there aren't any and to overlook problems where they do indeed exist. In chapter five, I develop a new account of the structure of Bayesian justification, which I call Bayesian coherentism. Bayesian coherentism is an updating norm that is motivated, both by the problems of the previous chapters and by the desire to provide a unified account of the structure from which updates on certain and uncertain evidence proceed. Finally, in chapter six, I develop a different norm that is guided by considerations similar to those that motivate Bayesian coherentism, but that is also compatible with the recently popular idea that there are no norms of diachronic rationality.Publication Fallibility and Normativity(2016-09) DiPaolo, JoshuaWe are fallible, and knowledge of our fallibility has normative implications. But these normative implications appear to conflict with other compelling epistemic norms. We therefore appear to face a choice: reject fallibility-based norms or reject these other epistemic norms. I argue that there is a plausible third option: reconcile these two sets of norms. Once we properly understand the nature of each of these norms, we aren’t forced to reject either.Publication Structuring Thought: Concepts, Computational Syntax, and Cognitive Explanation(2016-09) Gifford, Matthew BThe topic of this dissertation is what thought must be like in order for the laws and generalizations of psychology to be true. I address a number of contemporary problems in the philosophy of mind concerning the nature and structure of concepts and the ontological status of mental content. Drawing on empirical work in psychology, I develop a number of new conceptual tools for theorizing about concepts, including a counterpart model of concepts' role in linguistic communication, and a deflationary theory of concepts' formal features. I also suggest some new answers to old problems, arguing, for example, that content realism is not hostage to a naturalized semantics. This dissertation can, as a whole, be read as a sympathetic re-evaluation of the language of thought hypothesis (LOT). LOT claims that thoughts are sentences in a mental language of computation, and are composed of meaningful, atomic symbols—concepts—which are individuated entirely by their formal features. Each chapter either defends various components of LOT from recent criticism, or fills in gaps in the theory. I begin the dissertation by introducing the language of thought project, and motivating and explaining each of its central components. In chapter 2, I discuss a recent competitor to atomism—neo-empiricism—and argue that it fails to meet several key desiderata on theories of concepts, and defend atomism from similar charges. In chapter 3, I argue against a view common to both philosophy and psychology: that concepts must be shareable. If true, atomism is in jeopardy. I find shareability to be unmotivated, and suggest an alternative counterpart model of concepts that does a better job of explaining the things shareability was supposed to explain. Chapter 4 takes up the question of what formal features are and how mental symbols are individuated. I develop a reductive account, arguing that formal features are certain sorts of physical properties and symbol types are sets of these properties. I turn to the topic of content in chapter 5, and defend a very strong version of content realism against recent criticism.Publication Understanding and Its Role in Inquiry(2016-05) Rancourt, Benjamin TIn this dissertation, I argue that understanding possesses unique epistemic value. I propose and defend a novel account of understanding that I call the management account of understanding, which is the view that an agent A understands a subject matter S just in case A has the ability to extract the relevant information and exploit it with the relevant cognitive capacities to answer questions in S. Since inquiry is the process of raising and answering questions, I argue that without understanding, it would be impossible to engage in successful inquiry. I argue that understanding is indispensable for effective cognition and that it is irreducible to other epistemic categories, such as knowledge, justification, or rationality. Understanding is an irreducible component of epistemic excellence. In arguing for this account, I focus on the nature and requirements of cognition and pay less attention to intuitions about hypothetical cases, in contrast to previous approaches to understanding. I draw upon psychology and cognitive science, especially work on the frame problem, to demonstrate the importance (and difficulty) of finding relevant information and exploiting it in relevant ways to answer questions. One’s cognitive system must be organized in such a way that one has the ability to think the relevant thoughts in the relevant ways to answer the relevant questions. This reveals well-defined directions in which future research on understanding should move. In addition to proposing and defending the management account of understanding, I explore several features of understanding, including some interesting consequences of the management account. I argue that the management account and commonly used methods of measuring degrees of understanding imply that understanding can be based on false beliefs. I argue that the management account (and any account of understanding that implies understanding is an ability) implies that understanding can be acquired by luck. I also argue that understanding is ontologically prior to explanation: a good explanation is essentially an act that produces understanding in the relevant cognitive background.Publication Agency and Reasons in Epistemology(2016-05) Oliveira, Luis R.G.Ever since John Locke, philosophers have discussed the possibility of a normative epistemology: are there epistemic obligations binding the cognitive economy of belief and disbelief? Locke's influential answer was evidentialist: we have an epistemic obligation to believe in accordance with our evidence. In this dissertation, I place the contemporary literature on agency and reasons at the service of some such normative epistemology. I discuss the semantics of obligations, the connection between obligations and reasons to believe, the implausibility of Lockean evidentialism, and some of the alleged connections between agency and justification.Publication The Path To Supersubstantivalism(2016-05) Moulton, Joshua DThis dissertation is divided into two parts. In the first part I defend substantivalism. I do this by offering, in chapter 1, a counterpart-theoretic defense of substantivalism from Leibniz‚Äô shift arguments. Then, in chapter 2, I defend substantivalism from the hole argument and argue, against the consensus, that the question of haecceitism is irrelevant to substantivalism in the context of general relativity. In the second part of the dissertation I defend supersubstantivalism. I do this by offering, in chapter 3, an argument against dualistic substantivalism. The argument appeals to plausible principles of modal plenitude to show that the dualist is committed to a range of problematic possibilities. Then, in chapter 4, I consider a range of supersubstantivalist positions. I conclude by arguing for a version of supersubstantivalism I call compresence supersubstantivalism.Publication Taste Disagreements and Predicates of Personal Taste(2014) Buetow, Heidi TeresIn my dissertation, I explore the role of taste disagreements in the debate about the semantics of predicates of personal taste. Linguistic data derived from examples of gustatory disagreement often plays a major role in deciding the correct semantics of taste. I claim that, contrary to the trend in the recent literature, taste disagreements should not play any part in this debate. I argue that the data can be accommodated independently of the semantics by a theory of the purpose of “subjective” disagreements, such as taste disagreements. In support of this claim, I develop such a theory—one that includes an appeal to distinctively gustatory norms. I demonstrate how this theory can be applied equally well to the two major competing semantic theories—relativism and contextualism—to explain taste disagreements. If I am correct, this discovery represents a substantial contribution to the dialectic because it offers philosophers and linguists decisive motivation to discontinue their reliance on disagreement data in the debate about the semantics of taste.Publication The Dialectical Virtue of Ideological Reduction(2023-09) Nahm, KeehyukMany would agree that there is something generally appealing and attractive about reduction. By this, I do not mean that reductive theories are accepted across the board, nor do I mean that they should be. All I mean is that there is something recognizably “good” about the reductive method that may be outweighed by other considerations. For instance, it is extremely rare for one to reject the reductionist position of a given domain while conceding that the proposed reductive procedure is successful. Typically, the opposition consists in denying that the subject matter can be reduced. This suggests an unspoken rule of the dialectical that, if something can be reduced, then it should be reduced; or, all else being equal, a reductive theory is to be favored over a non-reductive theory. In a similar light, conventional metaphysical wisdom tells us that primitivist positions should only be accepted as a last resort. Again, there may be cases where the situation is dire enough for us to resort to primitivism. Nevertheless, few will oppose the general idea that we ought to reach for primitivism only when all other accounts fail. Let us call these attitudes ‘UNSPOKEN RULE’ and ‘LAST RESORT’, respectively. In this dissertation, I offer an explanation of how these attitudes apply to ideological reduction by appealing to what I call dialectical virtues and vices. For this end, the first half of the dissertation is dedicated to clarifying what ideology is and what ideological reduction involves. In the second half, I introduce the notion dialectical virtues and vices and argue for their epistemic relevance. Dialectical virtues are features of a theory that place its advocates at a comparative advantage in the context of a debate; dialectical vices are those that place them at a comparative disadvantage. I argue that there are certain dialectical virtues and vices that are associated with (ideological) reductionism and primitivism, and that the above attitudes are the results of our being sensitive to them. Furthermore, I put forth this explanation, not as a merely psychological or sociological explanation of these attitudes. Instead, I argue that dialectical virtues and vices are epistemically relevant and that have serious implications for our evaluation of theories.Publication Naturalized Human Epistemology is Social Epistemology(2022-09) O'Rourke-Friel, MollyOur epistemic lives are ones of deep social dependence. Social epistemology is often understood as a subfield that stands apart from, but is compatible with, traditional individualistic approaches to epistemology. In my work I reject this view and argue instead that human epistemology is necessarily social epistemology. I argue for this as an epistemological naturalist. I understand epistemological naturalism as a commitment to the following: (a) the claim that empirical research from psychology, cognitive science, and evolutionary biology is relevant to epistemological inquiry and (b) the meta-epistemological thesis that knowledge and justification are reducible to natural phenomena. In Chapter 1 of my dissertation, I argue that a naturalistic epistemic lens can account for the phenomena and considerations that are foundational to non-naturalist arguments. This chapter not only defends epistemological naturalism from its opponent; it makes room for epistemic naturalists, reliabilists about justification in particular, to say that our social epistemic practices, like our ability to defend our beliefs to one another, are epistemically significant. Naturalistic reliabilists have historically just explained away non-naturalist intuitions about the importance of the human capacity for reasons-giving. This chapter gives naturalistic reliabilists the resources to claim that, while non-naturalists are mistaken when they characterize our reasons-giving capacity as the source of epistemic normativity, they are correct in thinking that it is of deep epistemic importance to creatures like us. In Chapter 2, I develop the naturalistic reliabilist theory of justification so that it can accommodate empirical analysis of our social epistemic lives. I argue that there can be extended interactive justification conferring processes. In short, whether our individual beliefs are doxastically justified can be a function of the reliability of our dialogical interactions with interlocutors. My argument not only serves as a development and defense of reliabilism; it also functions as an independent argument against evidentialist views of doxastic justification. In Chapter 3, I turn my attention to epistemic blameworthiness and blaming. I give an argument against the plausibility of positing an epistemic norm of blameworthiness that is distinct from doxastic justification. I argue that internalists can’t do so, because their notion of blameworthiness can’t be meaningfully different from their notion of justification. I argue that it is difficult for externalists to do so, and that they ought not because of the fundamental commitments of externalism. I argue that we can give an account of our practices of epistemic blaming that construes them as instrumentally epistemically important. Chapter 1 establishes and defends a naturalistic social epistemic framework. The following two chapters explore how we should think about epistemic norms governing epistemic justification and blameworthiness if we adopt this framework.
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