While it is generally conceded that the phenomenon of linguistic vagueness threatens the principle of bivalence, there is no consensus as to whether this concession should force revisions to a logic adequate for reasoning in the absence of vagueness. The question of revision arises whatever that logic is relevant logic, classical logic, intuitionistic logic or whatever. But for simplicity we will focus on the case where both parties to the dispute, the reviser and the non-reviser, take the logic whose revision is at issue to be classical logic. Except for a few remarks on quantifiers in our final section we shall concen? trate on propositional logic, the area in which this debate over revision has mainly been conducted. Although there are in principle many ways in which the logical status quo might be maintained or challenged in the light of the acknowledged threat to bivalence from the existence of vagueness, one pair of representatives of the two positions have attained a certain preeminence. A discussion of their relative merits is the main theme of Fine (1975). The representative revisionary position is what Fine terms the truth-value approach. Here the idea is to replace the classical true/false dichotomy with a more extensive bounded chain of truth-values, whose bounds are thought of as definite truth and definite falsity, with the intervening values representing intermediate degrees of truth. Let us refer to these intermediate values collectively as indefinite. The connectives are then supposed functional in this set of values, with conjunction and disjunction treated by g.l.b. (=min, since we are in a chain) and l.u.b. (=max), and negation by some rule which flips bounds and keeps indefinites indefinite. (We may ignore other connectives for present purposes.) In the simplest case, we get the three-valued tables of Kukasiewicz and (strong) Kleene (which agree on a, v, ?i) with a single indefinite value serving as a fixed point for negation. The greatest element of this chain of values is the 'designated' value that value which we require every assignment of