"Logic and Conversation"

Implicature

determined by sentence meaning or by conversational context

determined by the meaning of the sentence used

Subtopic

conversacional Implicatures

pragmatic inferences

Harold says that Sally should bring her umbrella, but further conveys that (he believes that) it is likely to rain.

Conversational Maxims

Quality

Don't say what you
believe to be false

Manner

Be brief.
Be orderly.

Topic principal

Generalized Conversational Implicature

Don't say things for which
you lack evidence

Quantity

Say no less than conversation
requiers. Say no more than
the conversation requiers.