peting theories of vagueness. Nonetheless, when Tek is borderline tall, it does seem that the unclarity about whether he is tall is not merely epistemic (i.e. such. Cambridge Studies in Philosophy: Theories of Vagueness by Rosanna Keefe, , available at Book Depository with free delivery worldwide. In this book Rosanna Keefe explores the questions of what we should want from theories of vagueness and how we should compare them. Her powerful and.

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After all, truth-value gaps have far more independent support from the history of philosophy at least if confined to Western philosophy.

Generality is obviously useful. Given that there is a threshold, we would be ignorant of its location. Choose but stick to your choice! In the vast majority of cases, the unknowability of a borderline statement is only relative to a given means of oeefe the issue Sorensenchapter 1.

David Barnett – manuscript.

Cambridge Studies in Philosophy: Theories of Vagueness

In addition, this part also offers a discussion of various methodological principles and perspectives used in the analyses of the vagueness theories. The contextualist would also need to address a second technique for stabilizing keeefe context.

Uncertainty Behind the Veil of Ignorance.

Stoop is tall or it is not the case that Mr. There are shorter pygmies who are borderline tall for a pygmy and taller Masai who are borderline tall for a Masai. If I bet against each number being the threshold, then I must have placed a losing bet somewhere.

Schiffer also needs to accommodate the fact that some speakers are undecided about whether the nature of the uncertainty involves vagueness. This neatly explains why it is universally impossible to know the truth-value of a borderline statement.


Proponents of many-valued logic approach this obligation with great industry.

Project MUSE – Theories of Vagueness (review)

But conservatism is just one desideratum among many. One of his students, Henry Mehlberg went on to substitute gaps for gluts.

Schiffer offers a calculus for this vagueness-related propositional attitude. The horizon is more than 1 meter away. How strictly are we to take the comparison between vague words and indexical terms? The negation of the second premise classically implies a sharp threshold for childhood. In vaguenes absence of a decisive reductio ad absurdummany logicians feel their role to be the liberal one of articulating the logical space for vague objects. Scientific Essentialism Brian Ellis.

Every person is a child of someone. Most theorems of standard logic break down when intermediate truth-values are involved.

Instead of committing ourselves prematurely, we can fill in meanings as we go along in light of new information and interests. The deliberator may accept the tautologies of classical logic as constraints governing competing vaguenees for drawing lines. No amount of conceptual analysis or empirical investigation can settle whether a 1. Uncertainties about the scope of discretion may arise from higher order vagueness Schauer Shapiro thinks speakers have discretion over borderline cases because they are judgment dependent.

Theories of Vagueness – Rosanna Keefe – Google Books

Some of the reasons are technical. Supervaluationists say theoriss being supertrue being true under all precisifications suffices for being true. The calculation will itself leave some borderline cases. However, epistemicists do not have a monopoly on this prediction. On Sharp Boundaries for Vague Terms. Likewise, we do not judge precisifications of borderline cases by their truth-values because they are obviously not ascertainable as true or false.


Every form of deviant logic has been applied in the hope of resolving the sorites paradox. Project MUSE Mission Project MUSE promotes the creation and dissemination of essential humanities and lf science resources through collaboration with libraries, publishers, and scholars worldwide. Essays on the Philosophy of D.

Most philosophers now take the possibility of essential properties seriously. Thories Myth of Morality Richard Joyce. The philosophical contribution of the book is a valuable addition to the study of the linguistic implications of vagueness. When does a fertilized egg develop into a person? Vagueness will then be contrasted with ambiguity and generality. Timothy Williamson – – Routledge.

Supervaluationism in Philosophy of Language. The mere fact that an ambiguous statement comes out true under all its disambiguations does not show that the statement itself is true. Every species is vague, every term goes cloudy at its edges, and so in my way of thinking, relentless logic is only another name for stupidity—for a sort of intellectual pigheadedness. They fear that the clarity achieved by semantic ascent will be muddied by metaphysics.

Reprinted in Keefe and Smith eds. There is wide agreement that a term is vague to the extent that it has borderline cases. A Readerin Keefe and Smith eds.

The girl also balances values: How to cite this entry. Or is he merely pointing out that certain non-propositions have a structure isomorphic to logical theorems? Or are borderline cases side-effects of ordinary conversation—like echoes?