精选优质文档-倾情为你奉上Definition1. Broad context: any contextual information that is relevant to the working out of what the speaker overtly intends to mean, and to the successful and felicitous performance of speech acts.2. Constancy under negation: a property of presupposition which dictates that a presupposition generated by the use of a lexical item or a syntactic structure remains the same when the sentence containing that lexical item or syntactic structure is negated.3. Constative: an
