Axiomatics for Disquotational Truth Theory and Non-Conservativity Argument

Abstract

The paper considers the possibilities for the axiomatization of disquotational truth theory in perspective of the general S. Shapiro’s non-conservative argument against deflationary concept of truth. It shows that in a generalized formulation, Shapiro’s argument cannot be automatically extended to any axiomatic formulation of the disquotational theory. It also shows that the epistemological justification of the suitable class of substitutions for the T-scheme is the key to constructing an adequate axiomatic disquotational theory.