A Latest book of linguistics and philosophy: The modern history of this tradition starts especially with Gottlob frege who proposed to exempt meanings from the legislation of philosophy and to subordinate them rather to logic. The Logico philosophical approach to meaning elaborated by Wittgenstein Russell and Carnap and resulting in the Montagovian and post Montagovian formal semantics wanted to abstract from the way language is actually put to se and account for the semantics of language as an abstract system. The pioneers of this approach to semantics also concentrated on language as a means of encoding knowledge and hence first and foremost as a means of expressing context independent propositions which thus appeared as the primary subject matter of semantics.