In Philosophical Logic, the Liar Paradox has been used to motivate the introduction of both truth value gaps and truth value gluts. Moreover, in the light of "revenge Liar" arguments, also ...
Studia Logica: An International Journal for Symbolic Logic, Vol. 91, No. 3, Truth Values. Part I (Apr., 2009), pp. 367-382 (16 pages) Some aspects of vagueness as presented in Shapiro's book Vagueness ...