Vagueness provides the first comprehensive examination of a topic of increasing importance in metaphysics and the philosophy of logic and language. Timothy Williamson traces the history of this philosophical problem from discussions of the heap paradox in classical Greece to modern formal approaches such as fuzzy logic. He illustrates the problems with views which have taken the position that standard logic and formal semantics do not apply to vague language, and defends the controversial realistic view that vagueness is a kind (...) of ignorance--that there really is a grain of sand whose removal turns a heap into a non-heap, but we cannot know which one it is. (shrink)

This paper deals with the truth-Conditions and the logic for vague languages. The use of supervaluations and of classical logic is defended; and other approaches are criticized. The truth-Conditions are extended to a language that contains a definitely-Operator and that is subject to higher order vagueness.

Now in a new edition, this volume updates Davidson's exceptional Inquiries into Truth and Interpretation (1984), which set out his enormously influential philosophy of language. The original volume remains a central point of reference, and a focus of controversy, with its impact extending into linguistic theory, philosophy of mind, and epistemology. Addressing a central question--what it is for words to mean what they do--and featuring a previously uncollected, additional essay, this work will appeal to a wide audience of philosophers, linguists, (...) and psychologists. (shrink)

Vagueness is currently the subject of vigorous debate in the philosophy of logic and language. Vague terms -- such as 'tall', 'red', 'bald', and 'tadpole' -- have borderline cases ; and they lack well-defined extensions. The phenomenon of vagueness poses a fundamental challenge to classical logic and semantics, which assumes that propositions are either true or false and that extensions are determinate.This anthology collects for the first time the most important papers in the field. After a substantial introduction that surveys (...) the field, the essays form four groups, starting with some historically notable pieces. The 1970s saw an explosion of interest in vagueness, and the second group of essays reprints classic papers from this period. The following group of papers represent the best recent work on the logic and semantics of vagueness. The essays in the final group are contributions to the continuing debate about vague objects and vague identity. (shrink)

Gary Ebbs shows that this appearance is illusory.

Roy Sorenson offers a unique exploration of an ancient problem: vagueness. Did Buddha become a fat man in one second? Is there a tallest short giraffe? According to Sorenson's epistemicist approach, the answers are yes! Although vagueness abounds in the way the world is divided, Sorenson argues that the divisions are sharp; yet we often do not know where they are. Written in Sorenson'e usual inventive and amusing style, this book offers original insight on language and logic, the way world (...) is, and our understanding of it. (shrink)

This lucidly written book examines the social and political significance of the natural sciences through a detailed and original account of science as an interpretive social practice.

Most expressions in natural language are vague. But what is the best semantic treatment of terms like 'heap', 'red' and 'child'? And what is the logic of arguments involving this kind of vague expression? These questions are receiving increasing philosophical attention, and in this book, first published in 2000, Rosanna Keefe explores the questions of what we should want from an account of vagueness and how we should assess rival theories. Her discussion ranges widely and comprehensively over the main theories (...) of vagueness and their supporting arguments, and she offers a powerful and original defence of a form of supervaluationism, a theory that requires almost no deviation from standard logic yet can accommodate the lack of sharp boundaries to vague predicates and deal with the paradoxes of vagueness in a methodologically satisfying way. Her study will be of particular interest to readers in philosophy of language and of mind, philosophical logic, epistemology and metaphysics. (shrink)

Covering the work of Frege, Russell, and more recent work on singular reference, this important book examines the concepts of perceptually-based demonstrative identification, thought about oneself, and recognition-based demonstrative identification.

Ascriptions of content are sensitive not only to our physical and social environment, but also to unforeseeable developments in the subsequent usage of our terms. This paper argues that the problems that may seem to come from endorsing such 'temporally sensitive' ascriptions either already follow from accepting the socially and historically sensitive ascriptions Burge and Kripke appeal to, or disappear when the view is developed in detail. If one accepts that one's society's past and current usage contributes to what one's (...) terms mean, there is little reason not to let its future usage to do so as well. (shrink)

On the epistemic view of vagueness, a vague expression has sharp boundaries whose location speakers of the language cannot recognize. The paper argues that one of the deepest sources of resistance to the epistemic view is the idea that all truths are cognitively accessible from truths in a language for natural science, conceived as precise, in a sense explained. The implications of the epistemic view for issues about the relations between vague predicates and scientific predicates are investigated.

I argue that the semantic content of thoughts and the linguistic meaning of expressions are things with a history in the sense that they can be made fully intelligible only from the point of view of the future. I defend this position by articulating a version of a view known in the philosophy of language as temporal externalism. Temporal externalism about content is the view that the content of a subject’s thoughts and utterances at a time t depends on features (...) of the linguistic practices of her community after t. There are two different ways in which temporal externalism can be developed. First, one can take it to be the view according to which the meaning of an expression is given by the whole pattern of use, including future ones, of that expression. Alternatively, one can interpret temporal externalism as the view that the meaning of a speaker’s utterance is determined by the norms that govern or constrain her linguistic behaviour. These norms, which may be instituted at a later date, place their authoritative stamp upon prior conduct. I show that the first version of temporal externalism faces severe objections from which the second version is immune. I also provide a defence of this second position through an extensive discussion of some thought experiments. (shrink)

There has frequently been taken to be a tension, if not an incompatibility, between "externalist" theories of content (which allow the make-up of one's physical environment and the linguistic usage of one's community to contribute to the contents of one's thoughts and utterances) and the "methodologically individualist" intuition that whatever contributes to the content of one's thoughts and utterances must ultimately be grounded in facts about one's own attitudes and behavior. In this dissertation I argue that one can underwrite such (...) externalist theories within a methodologically individualistic framework by understanding semantic norms in terms of the need to reach, for each of one's terms, a type of "equilibrium." Each speaker's commitment to making her _own_ beliefs and applications consistent allows one to incorporate these 'external' factors into the contents of their thoughts and utterances in a way that remains methodologically individualistic. Methodologically individualistic accounts are typically taken to be unable to incorporate 'external' factors such as the world's physical make-up or communal usage because of arguments suggesting that the individual's own beliefs and usage underdetermine or even misidentify what, according to externalist accounts, they mean by their terms. These arguments, however, only seem plausible if one presupposes a comparatively impoverished conception of the individual's beliefs. The beliefs a speaker associates with a given term extend far beyond the handful of sentences they would produce if asked to list such beliefs. In particular, speakers have an implicit, but rich, understanding of their language, their world, and the relation between them. Speakers typically understand languages as shared temporally extended practices about which they can be, both individually and collectively, mistaken. Once this conception of language is taken into account, the ascriptions which purportedly forced 'non-individualistic' conceptions of content upon us (particularly ascriptions which seemed to tie what we meant to social use rather than our own beliefs) turn out to be ultimately grounded in the individual's own beliefs. Indeed, our self-conception does much more than merely underwrite 'non-individualistic' ascriptions.. (shrink)

Another paper exploring the relation between Temporal externalism and Epistemicism about Vagueness, but with slightly more emphasis on the role of constitutive norms relating to our concept of truth.

Semantic holists view what one's terms mean as function of all of one's usage. Holists will thus be coherentists about semantic justification: showing that one's usage of a term is semantically justified involves showing how it coheres with the rest of one's usage. Semantic atomists, by contrast, understand semantic justification in a foundationalist fashion. Saul Kripke has, on Wittgenstein's behalf, famously argued for a type of skepticism about meaning and semantic justification. However, Kripke's argument has bite only if one understands (...) semantic justification in foundationalist terms. Consequently, Kripke's arguments lead not to a type of skepticism about meaning, but rather to the conclusion that one should be a coherentist about semantic justification, and thus a holist about semantic facts. (shrink)

The purpose of this paper is to motivate and defend a recognizable version of N. L. Wilson's "Principle of Charity" Doing so will involve: (1) distinguishing it fromthe significantly different versions of the Principle familiar through the work of Quine and Davidson; (2) showing that it is compatible with, among other things, both semantic externalism and "simulation" accounts of interpretation; and (3) explaining how it follows from plausible constraints relating to the connection between interpretation and self-interpretation. Finally, it will be (...) argued that Charity represents a type of "minimal individualism" that is closely tied to first person authority, and that endorsing Charity in our interpretations of others reflects a commitment to capturing, from the third-person starting point, their first-personal point of view. (shrink)

The doctrine of simple individuals has its equal and opposite reaction in the view that an individual is simply a bundle of properties, that the identity of an individual is entirely dependent on the identity of its properties. This view also seems to me to be in some sense wrong and I shall attack it in passing. If all my remarks have seemed excessively polemical it is because I have been anxious to make it as clear as possible what the (...) motivation behind this paper is. I am mainly concerned with the problem concerning the "it" which underlies or has properties and I shall want to argue that the identity of an individual--what it is that makes an individual that individual--does not depend merely on its being that individual or having that piece of substratum, but it depends partially and in a complicated way on the identity of its properties. The analysis will have to exhibit the nature of that dependence. Most of the discussion will revolve around proper names and their function since it is through linguistic considerations, I think, that we get the clearest illumination. The result, in case any one is interested, will be Absolute Idealism, or something like it. (shrink)

'Epistemic' theories of vagueness notoriously claim that (despite the appearances to the contrary) all of our vague terms have sharp boundaries, it's just that we can't know what they are. Epistemic theories are typically criticized for failing to explain (1) the source of the ignorance postulated, and (2) how our terms could come to have such precise boundaries. Both of these objections will, however, be shown to rest on certain 'presentist' assumptions about the relation between use and meaning, and if (...) allows that the meaning constitutive elements of our linguistic practices can extend into the future, the possibility of a new sort of 'normative epistemicism' emerges. (shrink)

In a recent paper, Ebbs has given an elegant statement of a notable puzzle that has recurred in the literature since the original publication of Putnam’s “The Meaning of ‘Meaning’.” The puzzle can be formulated, for a certain characteristic case, along the following lines. There are very strong intuitions in support of a thesis that Putnam has explicitly endorsed, namely, the thesis: The extension of the word ‘gold’, as we use it now, is the same as the extension of ‘gold’, (...) as it was used in 1650 (before the rise of molecular chemistry). However, strong convictions about language use and truth conditions also incline us to the view that the extension of a term, as it is used at a time t, is determined by facts about the use of the term in the language at or before t, together with the facts about the various items to which the term prospectively applied. This paper looks at the various issues involved regarding these matters. (shrink)

Abstract Temporal Externalism is the view that future events can contribute to determining the present content of our thoughts and utterances. Two objections to Temporal Externalism are discussed and rejected. The first is that Temporal Externalism has implausible consequences for the epistemology of biology and other taxonomic sciences (Brown, 2000). The second is that it is committed to implausible claims about dispositions.

'Epistemic' accounts of vagueness argue that so called 'borderline' cases of a term actually always do fall within that term's extension. What makes the case borderline is that this fact may be unknowable. Such epistemic theories have traditionally been taken to be unable to accommodate the intuitive connection between meaning and use. However, it will be argued here that if one endorses a type of 'Temporal Externalism' about meaning, then one can both endorse epistemic accounts of vagueness and hold on (...) to the traditional tie between meaning and use. (shrink)