Disimplicature

Speranza

One of Grice's unpublications is about conjunctions and disjunctions in the scope of non-doxastic attitude verbs. 

These constructions generate a certain type of ignorance implicature. 

Grice argues that the best way to account for these implicatures is by appealing to a notion of contextual redundancy (Schlenker, Fox, Mayr and Romoli). 

This pragmatic approach to ignorance implicatures is contrasted with a semantic account of disjunctions under `wonder' that appeals to exhausti cation (Roelofsen and Uegaki). 

Grice argues that exhausti cation-based theories cannot handle embedded conjunctions, so a pragmatic account of ignorance implicatures is superior.