Ruth Kempson Ruth Margaret Kempson, FBA (born 26 June 1944) is a British linguist. She is Emeritus Professor of Linguistics at King's College, London. In 1977, Kempson published Semantic Theory, which discusses the concept of entailment in linguistics. A proposition (P) is entailed by another (Q) if P is true when Q is true and Q is false when P is false, but Q is not strictly defined if P is true. She was awarded a Fellow of the British Academy in 1989. She has made contributions to the theoretical framework of Dynamic syntax. References Category:Semanticists Category:Syntacticians Category:Fellows of the British Academy Category:Academics of King's College London Category:English academics Category:1944 births Category:Living people