John Hawthorne

Eleven pairs of newly commissioned essays face off on opposite sides of fundamental problems in current theories of knowledge. Brings together fresh debates on eleven of the most controversial issues in epistemology. Questions addressed include: Is knowledge contextual? Can skepticism be refuted? Can beliefs be justified through coherence alone? Is justified belief responsible belief? Lively debate format sharply defines the issues, and paves the way for further discussion. Will serve as an accessible introduction to the major topics in contemporary epistemology, whilst also capturing the imagination of professional philosophers.

It is tempting to posit an intimate relationship between belief and assertion. The speech act of assertion seems like a way of transferring the speaker’s belief to his or her audience. If this is right, then you might think that the evidential warrant required for asserting a proposition is just the same as the warrant for believing it. We call this thesis entitlement equality. We argue here that entitlement equality is false, because our everyday notion of belief is unambiguously a weak one. Believing something is true, we argue, is compatible with having relatively little confidence in it. Asserting something requires something closer to complete confidence. Specifically, we argue that believing a proposition merely requires thinking it likely, but that thinking that a proposition is likely does not entitle one to assert it. This conclusion conflict with a standard view that ‘full belief’ is the central commonsense non-factive attitude

It is often thought that materialism about themind can be clarified using the concept of supervenience. But there is a difficulty. Amaterialist should admit the possibility ofghosts and thus should allow that a world mightduplicate the physical character of our worldand enjoy, in addition, immaterial beings withmental properties. So materialists can't claimthat every world that is physicallyindistinguishable from our world is alsomentally indistinguishable; and this is wellknown. What is less understood are thedifferent ways that immaterial add-ons can maketrouble for supervenience-theoreticformulations of materialism. In this paper, Ishall present a problematic kind of add-on thathas been ignored and look at threesupervenience-theoretic attempts to formulatematerialism in that light.

In his seminal paper 'Assertion', Robert Stalnaker distinguishes between the semantic content of a sentence on an occasion of use and the content asserted by an utterance of that sentence on that occasion. While in general the assertoric content of an utterance is simply its semantic content, the mechanisms of conversation sometimes force the two apart. Of special interest in this connection is one of the principles governing assertoric content in the framework, one according to which the asserted content ought to be identical at each world in the context set. In this paper, we present a problem for Stalnaker's meta-semantic framework, by challenging the plausibility of the Uniformity principle. We argue that the interaction of the framework with facts about epistemic accessibility - in particular, failures of epistemic transparency - cause problems for the Uniformity principle and thus for Stalnaker's framework more generally.

Oxford Studies in Epistemology is a biennial publicaton which offers a regular snapshot of state-of-the-art work in this important field. Under the guidance of a distinguished editorial board composed of leading philosophers in North America, Europe and Australasia, it will publish exemplary papers in epistemology, broadly construed. Topics within its purview include: *traditional epistemological questions concerning the nature of belief, justification, and knowledge, the status of scepticism, the nature of the a priori, etc; *new developments in epistemology, including movements such as naturalized epistemology, feminist epistemology, social epistemology, and virtue epistemology, and approaches such as contextualism; *foundational questions in decision-theory; *confirmation theory and other branches of philosophy of science that bear on traditional issues in epistemology; *topics in the philosophy of perception relevant to epistemology; *topics in cognitive science, computer science, developmental, cognitive, and social psychology that bear directly on traditional epistemological questions; and *work that examines connections between epistemology and other branches of philosophy, including work on testimony and the ethics of belief. Anyone wanting to understand the latest developments at the leading edge of the discipline can start here.

Much contemporary discussion of perceptual experience can be traced to two observations. The first is that perception seems to put us in direct contact with the world around us: when perception is successful, we come to recognize— immediately—that certain objects have certain properties. The second is that perceptual experience may fail to provide such knowledge: when we fall prey to illusion or hallucination, the way things appear may differ radically from the way things actually are. For much of the twentieth century, many of the most important discussions of perceptual experience could be fruitfully understood as responses to this pair of observations.

Unsere Diskussion soil eine Alternative zu der allgemein anerkannten Interpretation der Leibnizschen Auffassung von De-re-Modalitat verteidigen. Insbesondere versuchen wir zu zeigen, dafi Leibniz nicht die Lehre von der Weltgebundenheit der Einzelsubstanzen akzeptierte, obwohl er annahm, dafi die inneren Bestimmungen den Dingen wesentlich zukommen. Wir versuchen weiterhin zu erweisen, dafl Leibniz eine duplikat-theoretische Behandlung des ublichen modalen Diskurses vornahm und dafi dies in keiner Weise seinen Ansichten iiber zwischenweltliche Identitat widerspricht. Im ersten Teil skizzieren wir kurz die allgemein anerkannte Interpretation, wahrend wir im zweiten Teil unsere Alternative dazu verteidigen.Dabei nehmen wir besondere Riicksicht auf Robert C. Sleigh Jr. s Interpretation von Leibnizens Modaltheorie.

One of Weatherson's main goals is to drive home a methodological point: We shouldn't be looking for deductive arguments for or against relativism – we should instead be evaluating inductive arguments designed to show that either relativism or some alternative offers the best explanation of some data. Our focus in Chapter Two on diagnostics for shared content allegedly encourages the search for deductive arguments and so does more harm than good. We have no methodological slogan of our own to offer. Part of what we were trying to do was to clearly articulate what the relevant issues even are. Often relativism is characterized in a way that is offhand and sloppy. The relativist, we are told, accepts 'disquotational truth' for various kinds of claims but denies that they are 'true simpliciter'. What exactly is going on here? Do the relevant distinctions even make sense? Before engaging in various abductive manoevers we need to get much clearer about what it is that we are trying to argue for and against. That said we are perfectly happy with the kind of inductive enterprise that Weatherson sketches. For our part, we were fully aware (and indeed explicit) that the 'agreement' diagnostic does not ‘deductively’ settle all of the relevant disputes. A significant part of Chapter Four is dedicated to something in the vicinity of Weatherson's project. Note, indeed, that our diagnostics are even stated using the ideology of 'providing evidence' – hardly the basis for a straightforwardly deductive argument for or against relativism. Finally, though, we should point out that we are not hostile to deductive arguments against relativism. A philosopher's evidence is theory-laden and in part owes itself to epistemic powers that his or her opponents may not acknowledge. In short, their evidence may not always have the hallmarks of 'evidence neutrality' --- evidence that their opponents would recognize as such. We are perfectly open to there being compelling deductive arguments against relativism from such evidence..

The beginning of the twenty-first century saw something of a comeback for relativism within analytical philosophy. Relativism and Monadic Truth has three main goals. First, we wished to clarify what we take to be the key moving parts in the intellectual machinations of self-described relativists. Secondly, we aimed to expose fundamental flaws in those argumentative strategies that drive the pro-relativist movement and precursors from which they draw inspiration. Thirdly, we hoped that our polemic would serve as an indirect defence of a traditional and natural picture concerning truth. According to this picture, what we call ‘Simplicity’, the fundamental structure of semantic reality is best revealed by construing truth as a simple monadic property of propositions that serve as the objects of belief, assertion, meaning and agreement. Our project was not a straightforward one. So-called relativists are not uniform in their key ideology, are often sloppy, casual, obscure or confused in their self-characterization, and differ in their argumentative emphasis among themselves and over time, thereby presenting a target that is both amorphous and shifty. This is an area where parties will frequently claim not to understand each other and where certain parties will sometimes accuse others of failing to make any sense at all. In such a situation, any effort to impose order will inevitably strike some parties as tendentious and unfair. That said, we felt that we had enough of …

The problem of evil is the most prominent argument against the existence of God. Skeptical theists contend that it is not a good argument. Their reasons for this contention vary widely, involving such notions as CORNEA, epistemic appearances, 'gratuitous' evils, 'levering' evidence, and the representativeness of goods. We aim to dispel some confusions about these notions, in particular by clarifying their roles within a probabilistic epistemology. In addition, we develop new responses to the problem of evil from both the phenomenal conception of evidence and the knowledge-first view of evidence.

We pose and resolve several vexing decision theoretic puzzles. Some are variants of existing puzzles, such as 'Trumped' (Arntzenius and McCarthy 1997), 'Rouble trouble' (Arntzenius and Barrett 1999), 'The airtight Dutch book' (McGee 1999), and 'The two envelopes puzzle' (Broome 1995). Others are new. A unified resolution of the puzzles shows that Dutch book arguments have no force in infinite cases. It thereby provides evidence that reasonable utility functions may be unbounded and that reasonable credence functions need not be countably additive. The resolution also shows that when infinitely many decisions are involved, the difference between making the decisions simultaneously and making them sequentially can be the difference between riches and ruin. Finally, the resolution reveals a new way in which the ability to make binding commitments can save perfectly rational agents from sure losses.

The principle of universal instantiation plays a pivotal role both in the derivation of intensional paradoxes such as Prior’s paradox and Kaplan’s paradox and the debate between necessitism and contingentism. We outline a distinctively free logical approach to the intensional paradoxes and note how the free logical outlook allows one to distinguish two different, though allied themes in higher-order necessitism. We examine the costs of this solution and compare it with the more familiar ramificationist approaches to higher-order logic. Our assessment of both approaches is largely pessimistic, and we remain reluctantly inclined to take Prior’s and Kaplan’s derivations at face value.

In this thesis, Semantics, Meta-Semantics, and Ontology, I provide a critique of the method of truth in metaphysics. Davidson has suggested that we can determine the metaphysical nature and structure of reality through semantic investigations. By contrast, I argue that it is not semantics, but meta-semantics, which reveals the metaphysically necessary and sufficient truth conditions of our claims. As a consequence I reject the Quinean criterion of ontological commitment. In Part I, chapter 1, I argue that the metaphysically primary truth bearers are not propositions, but rather concrete representations, either beliefs or sentences. I show, in chapter 2, that we can give sense to a truth predicate applying to sentences, given a truth operator and quantification into sentence position. I argue that this strategy does not commit us to the existence of propositions serving as truth bearers. In Part II I argue that although we must assign semantic values to sentences and/or predicates, the meaningfulness of these expressions is not thereby explained. In chapter 3 I articulate Davidson’s problem of predication and his solution, but argue that he was wrong to attribute this solution to Tarski. In chapter 4 I examine the semantics of modal languages; I conclude that although they require semantic values for predicates and/or sentences we should be instrumentalists about these theories. In Part III I consider the relationship between truth and existence. In chapter 5, I defend Pluralism about truth: in some domains of discourse, I claim, semantic reference plays a merely instrumental role in explaining truth. In chapter 6, I show that Hume’s Principle, which is committed by the Quinean criterion to the existence of numbers, can be true even though numbers do not exist. In doing so, I appeal to meta-semantic and diachronic considerations. In the conclusion I compare my views on ontology and commitment to Jody Azzouni’s; and in the appendix I suggest how one might pursue diachronic linguistics.

We think we have lots of substantial knowledge about the future. But contemporary wisdom has it that indeterminism prevails in such a way that just about any proposition about the future has a non-zero objective chance of being false.2, 3 What should one do about this? One, pessimistic, reaction is scepticism about knowledge of the future. We think this should be something of a last resort, especially since this scepticism is likely to infect alleged knowledge of the present and past. One anti-sceptical strategy is to pin our hopes on determinism, conceding that knowledge of the future is unavailable in an indeterministic world. This is not satisfying either: we would rather not be hostage to empirical fortune in the way that this strategy recommends. A final strategy, one that we shall explore in this paper, is one of reconciliation: knowledge of a proposition is compatible with a subject’s belief having a non-zero objective chance of error.4 Following Williamson, we are interested in tying knowledge to the presence or absence of error in close cases, and so we shall explore the connections between knowledge and objective chance within such a framework. We don’t want to get tangled up here in complications involved in attempting to formulate a necessary and sufficient condition for knowledge in terms of safety. Instead, we will assume the following rough and ready necessary condition: a subject knows P only if she could not easily have falsely believed P.5 Assuming that easiness is to be spelt..