Three Problems for the Singularity Theory of Truth

Author: Hardy J.¹

Source: Journal of Philosophical Logic, Volume 26, Number 5, October 1997 , pp. 501-520(20)

Publisher: Springer

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Abstract:

In this paper I present three problems for Simmons’ singularity theory of truth as he presents it in Universality and the Liar. I begin with a brief overview of the theory and then present the three problems I see for it.

The first problem shows that the singularity theory is in conflict with our ordinary notion of truth. I present a set of sentences that the singularity theory evaluates differently than does our pretheoretic concept of truth.

The second problem shows that Simmons’ theory is incomplete, in the sense that there are sentences of its object language of which it does not have the resources to evaluate.

The third problem suggests that Simmons theory does not, contrary to the claim of the book, allow for semantic universality. I consider Simmons’ extension of the singularity theory to accommodate truth-in-a-context and show that it is inconsistent with his basic theory. Specifically I present a sentence which diagonalizes out of the basic theory.

Language: English

Document Type: Regular paper

Affiliations: 1: Department of Philosophy, 026 Sycamove Hall, Indiana University, Bloomington, IN 47405, U.S.A.

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