Presupposition and the Delimitation of Semantics - Ruth M. Kempson - Bog

In this book, first published in 1975, Dr Kempson argues that previous work on presupposition has been mistakenly based on a conflation of two different disciplines: semantics, the study of the meanings assigned to the formal system which constitutes a language, and pragmatics, the study of the use of that system in communication.