Sentences, Propositions, and Truth-Bearers: Polish Tradition

This paper discusses the concepts of sentence, proposition, and truth-bearers as related to the tradition associated with Polish as philosophical language. The views of Twardowski, Łukasiewicz, Leśniewski, Kotarbiński, Ajdukiewicz, and Tarski are reported and examined. In particular, it is stressed that Polish logicians and philosophers rejected Platonic account of propositions, represented, for instance, by Bolzano, Frege, and Meinong.