Ludovico Geymonat (May 11, 1908 – November 29, 1991) was an Italian mathematician, philosopher and historian of science. As a philosopher, he mainly dealt with philosophy of science, epistemology and Marxist philosophy, in which he gave an original turn to dialectical materialism. Biography Born in Turin, where Geymonat attended Liceo classico Cavour, he graduated in Philosophy in 1930 and in Mathematics in 1932. Geymonat tried to break the wall between science and philosophy that characterised the idealistic culture fostered by Fascist intellectuals like Giovanni Gentile. In 1934 he went to Vienna, to delve into the neo-positivist philosophy of the Vienna Circle. During the World War II he fought as a partisan. After the war, he became communist assessor in Milan, between 1946 and 1949, when he obtained a chair of Theoretical philosophy at the University of Cagliari. Then he taught as professor of History of philosophy at the University of Pavia between 1952 and 1956, and as professor of philosophy of science in the University of Milan from 1956 to 1979. Member of the Italian Communist Party (PCI), later he was a supporter of the Communist Refoundation Party founded when PCI turned into the Partito Democratico della Sinistra. He died in Rho, Lombardy in 1991. Notable students Evandro Agazzi Mario Capanna Giulio Giorello Mario Vegetti Selected works Il problema della conoscenza nel positivismo, Bocca, Torino 1931 La nuova filosofia della natura in Germania, Bocca, Torino 1934 Studi per un nuovo razionalismo, Chiantore, Torino 1945 Saggi di filosofia neorazionalistica, Einaudi, Torino 1953 Galileo Galilei, Einaudi, Torino 1957, Filosofia e filosofia della scienza, Feltrinelli, Milano 1960 Filosofia e pedagogia nella storia della civiltà, with Renato Tisato, Garzanti, Milano 1965, 3 voll. , 1965 Attualità del materialismo dialettico, with Enrico Bellone, Giulio Giorello and Silvano Tagliagambe, Editori Riuniti, Roma 1974 Scienza e realismo, Feltrinelli, Milano 1977 Filosofia della probabilità, with Domenico Costantini, Feltrinelli, Milano 1982 , Riflessioni critiche su Kuhn e Popper, Dedalo, Bari 1983 Lineamenti di filosofia della scienza, Mondadori, Milano 1985, new edition by Utet, Torino 2006 , Le ragioni della scienza, with Giulio Giorello and Fabio Minazzi, Laterza, Roma-Bari 1986 , Storia del pensiero filosofico e scientifico, Garzanti, Milano 1970-1976, 7 voll. , La libertà, Rusconi, Milano 1988 La società come milizia, edited by Fabio Minazzi, Marcos y Marcos 1989 , new edition La civiltà come milizia, edited by Fabio Minazzi, La Città del Sole, Napoli 2008 I sentimenti, Rusconi,