Husserl, Ajdukiewicz and the Polish notation in Categorial Grammar

The contribution of Kazimierz Ajdukiewicz to categorial grammar is well known to the specialists in theoretical syntax. Nevertheless, the background of his contribution has been little investigated. In this paper, a first attempt is made to reconsider Husserl's treatment of meaning in syntax and its influence on Audikiewicz's conception of "semantic categories". In line with the ancient and medieval logico-linguistic tradition, grammar is taken to represent a highly abstract level of meaning that gives syntax a dynamic character.