Not every truth can be known (at least, not all at once)
In Joe Salerno (ed.), New Essays on the Knowability Paradox. Oxford University Press (2009)
| Abstract | According to the “knowability thesis,” every truth is knowable. Fitch’s paradox refutes the knowability thesis by showing that if we are not omniscient, then not only are some truths not known, but there are some truths that are not knowable. In this paper, I propose a weakening of the knowability thesis (which I call the “conjunctive knowability thesis”) to the e:ect that for every truth p there is a collection of truths such that (i) each of them is knowable and (ii) their conjunction is equivalent to p. I show that the conjunctive knowability thesis avoids triviality arguments against it, and that it fares very di:erently depending on another thesis connecting knowledge and possibility. If there are two propositions, inconsistent with one another, but both knowable, then the conjunctive knowability thesis is trivially true. On the other hand, if knowability entails truth, the conjunctive knowability thesis is coherent, but only if the logic of possibility is weak | |||||||||
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Berit Brogaard & Joe Salerno (2008). Knowability, Possibility and Paradox. In Vincent Hendricks (ed.), New Waves in Epistemology. Palgrave Macmillan.
Bernhard Weiss (2007). Truth and the Enigma of Knowability. Dialectica 61 (4):521–537.
Peter Marton (2006). Verificationists Versus Realists: The Battle Over Knowability. Synthese 151 (1):81 - 98.
Jonathan Kvanvig (1999). Tennant on Knowability. Australasian Journal of Philosophy 77 (4):422-428.
Jonathan Kvanvig (2009). Restriction Strategies for Knowability : Some Lessons in False Hope. In Joe Salerno (ed.), New Essays on the Knowability Paradox. Oxford University Press.
Salvatore Florio & Julien Murzi (2009). The Paradox of Idealization. Analysis 69 (3):461-469.
M. Hand (2003). Knowability and Epistemic Truth. Australasian Journal of Philosophy 81 (2):216 – 228.
Berit Brogaard & Joe Salerno, Fitch's Paradox of Knowability. The Stanford Encyclopedia of Philosophy.
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