Logical Omniscience
Paul Égré · 2020
The problem of logical omniscience is the fact thatbelieveand other attitude verbs in possible‐worlds semantics are predicted to be closed under logical consequence, in ways that appear implausibly strong, both relative to how beliefs are represented and relative to how they are ascribed in ordinary language. This chapter explains the problem and surveys four main strategies that have been proposed to deal with it, by means of primitive propositions, of impossible worlds, of structured meanings, and ofde rebelief relativized to acquaintance relations. Two further aspects of the problem of logical omniscience are examined, which concern the representation of unawareness and the treatment of fragmented beliefs.