Knowability and a new paradox of happiness

Joe Salerno

pp. 457-474

in: Hans van Ditmarsch, Paul-Gabriel Sandu (eds), Jaakko Hintikka on knowledge and game-theoretical semantics, Berlin, Springer, 2018

Abstract

The paper examines the logic of the knowability paradox and a structural analogue, a new paradox of happiness. We develop a general understanding of what it is to be a Fitch paradox, and follow a natural thread in the literature that attempts to block or resolve Fitch paradoxes. We conclude that, in the case of the attitude of happiness, the new paradox remains even if one finds the knowability analogue non-threatening.