Disquotationalism, Truth and Justification: The Pragmatist's Wrong Turn

Abstract

A view of truth that gained prominence among early logical positivists, what A.J. Ayer called the ‘redundancy theory of truth,’ has had a renaissance over the last few decades. The fundamental thought behind this theory is that the truth predicate is a device of disquotation. Redundancy, or disquotationalism, is seen by its advocates as providing a definitive answer to the perennial question ‘what is the nature of truth?’ The answer, says the disquotationalist, is to reject the idea that truth has some underlying nature. The terms true and false, as Ayer put it, connote nothing (Ayer, 1936/1946,88). They do not correspond or refer to some elusive ingredient of reality. Truth, he argued, must be deflated from its exalted metaphysical Status — but the notion should not be dispensed with altogether. Disquotationalists like Ayer think that the truth predicate has an essential role to play in logic. Indeed, disquotationalism, in its purest form, sees the sole function of the truth predicate as fulfilling this logical need, that is, as a device that aids generalization by permitting infinite conjunction and disjunction.