Considering the propositions "The blob is pink" and "The blob is red", Fine argued that penumbral truths cannot be respected by a truth-value account of this property, and, like Russell, used supervaluationism, claiming propositions with this property might be neither true nor false.
Dummett used this property to disprove strict finitism in "Wang's Paradox". Williamson has argued that if this property can be iterated twice, it can be iterated indefinitely, while discussing its "higher order" form. By examining a proof parallel to Kripke's refutation of contingent identities, where this property plays the role of contingency, Evans argued that objects could not have this property. Considering the propositions "The blob is pink" and "The blob is red", Fine argued that penumbral truths cannot be respected by a truth-value account of this property, and, like Russell, used supervaluationism, claiming propositions with this property might be neither true nor false. The epistemic view claims that predicates with this property have an unknowable  threshold. For 10 points, name this property exemplified by "being a heap" in the Sorites paradox, possessed by predicates with borderline cases.
Dummett used this property to disprove strict finitism in "Wang's Paradox".
vagueness