Many-Valued Logics 1: Theoretical Foundations
Leonard Bolc
Jan Lukasiewicz, Z Zagadnień Logiki i Filozofii, Warsaw, 1961; tr. in S.McCall (ed
.), Polish Logic: 1920–1939, Oxford (1967), 19–39 Lukasiewicz, J. (1929):
Elements of mathematical logic. Warsaw, Państwowe Wydawnictwo Naukowe,
2d ed., ...