Abstract

Many different kinds of items have been called vague, and so-called for a variety of different reasons. Traditional wisdom distinguishes three views of why one might apply the epitaph "vague" to an item; these views are distinguished by what they claim the vagueness is due to. One type of vagueness, The Good, locates vagueness in language, or in some representational system -- for example, it might say that certain predicates have a range of applicability. On one side of the range are those cases to which the predicate clearly applies and on the other side of the range are those cases where the negation of the predicate clearly applies. But there is no sharp cutoff place along the range where the one range turns into the other. Most examples of The Good are those terms which describe some continuum -- such as bald describes a continuum of the ratio of hairs per cm2 on the head. But not all work this way. Alston (1968) points to terms like religion invoking a number of criteria the joint applicability of which ensures that the activity in question is a religion and the failure of all to apply ensures that it is not a religion. But when only some middling number of the criteria are fulfilled, the term religion neither applies nor fails to apply. Some accounts of "family resemblance" and "open texture" might also fit this picture. Such a view is often called a "representational account of vagueness". Another conception of vagueness, The Bad, locates vagueness as a property of discourses, of memories, and of certain philosophers and their papers, etc. This sort of vagueness occurs when the information available does not allow one to tell, for example, that a certain sentence is true, but also does not allow one to determine that it is false. It occurs when the information available does not allow one to claim that a predicate applies to a name, but also does not allow one to claim that the negation of the predicate applies to that name..