Unknowable Truths

Journal of Philosophy (forthcoming)
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Abstract

In an anonymous referee report written in 1945, Church suggested a sweeping argument against verificiationism, the thesis that every truth is knowable. The argument, which was published with due acknowledgement by Fitch almost two decades later, has generated significant attention as well as some interesting successor arguments. In this paper, we present the most important episodes in this intellectual history using the logic that Church himself favoured, and we give reasons for thinking that the arguments are less than decisive. However, we present some new arguments against verificationism that we believe to be dialectically effective.

Author Profiles

Zachary Goodsell
National University of Singapore
John Hawthorne
University of Southern California
Juhani Yli-Vakkuri
Australian Catholic University

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