Knowing whether A or B

Maria Aloni

Paul Égré

Tikitu de Jager

pp. 2595-2621

in: Synthese 190 (14), 2013.

Abstract

The paper examines the logic and semantics of knowledge attributions of the form “s knows whether A or B”. We analyze these constructions in an epistemic logic with alternative questions, and propose an account of the context-sensitivity of the corresponding sentences and of their presuppositions.