Bobzien, Susanne [2002] 'Chrysippus and the Epistemic Theory of Vagueness', Proceedings of the Aristotelian Society 102, pp. 217-38.

Recently a bold and admirable interpretation of Chrysippus’ position on the Sorites has been presented, suggesting that Chrysippus offered a solution to the Sorites by (i) taking an epistemicist position which (ii) made allowances for higher-order vagueness (T. Williamson, Vagueness, London 1994). In this paper I argue (i) that Chrysippus did not take an epistemicist position, but ? if any ? a non-epistemic one which denies truth-values to some cases in a Sorites-series, and (ii) that it is uncertain whether and how he made allowances for higher-order vagueness, but if he did, this was not grounded on an epistemicist position.