Part I. Twardowski's School. The Period of Crystallization of LWS.- Introduction. The School: Its Geneses, Development and Significance.- Kazimierz Twardowski: a great teacher of great philosophers.- Jan Lukasiewicz: a creator of new ideas in logic and a reinterpreter of its history.- Kazimierz Ajdukiewicz:The Cognitive Role of Language.- Tadeusz CzeSowski.- Tadeusz Kotarbinski: Socrates of Warsaw.- Zygmunt Zawirski's life and scientific work.- Stanislaw Lesniewski: Original and Uncompromising Logical Genius.- Izydora Dambska: the first lady of the twentieth century Polish philosophy.- Maria Kokoszynska-Lutman.- Seweryna Luszczewska-Romahnowa.- On existential dependence and independence in the world of thoughts and states of affairs.- The Biography of Józef I.M. Bochenski.- Jan Salamucha (1903-1944).- Part II. Warsaw School of Logic, its main Figures and Ideas. The Period of Prosperity.- Lukasiewicz and his followers in many-valued logic.- Tomorrow's sea-battle and the beginning oftemporal logic.- Lesniewski and Mereology.- Alfred Tarski (1901-1983).- Stanislaw Jaskowski: life and work.- Czeslaw Lejewski: Propagator of Lvov-Warsaw Ideas Abroad.- Adolf Lindenbaum, metric spaces and decompositions.- Andrzej Mostowski, a biograpical note.- Jerzy Slupecki (1904-1987).- Boleslaw Sobocinski. The Ace of the Second Generation of the LWS.- Many-Valued Logics in the Iberian Peninsula.- Ontology of logic and mathematics in Lvov-Warsaw School.- A view of revival of Mathematical Logic in Warsaw, 1945 -1975.- Andrzej Mostowski and the notion of a model.- All Quantifiers versus the Quantifier All.- Helena Rasiowa (1917-1994).- Andrzej Grzegorczyk, a logician par excellent.- Roman Suszko - logician and philosopher.- Backmatter
