Jan Lukasiewicz [photograph 3]

Jan Lukasiewicz [photograph 3]

A photograph of Jan Łukasiewicz (1878 – 1956), the famous founder of the Polish school of logic, who had enormous influence on Arthur Prior's own development as a logician. Łukasiewicz was a professor of philosophy at the University of Warsaw until the end of WWII. This photograph is taken in 1935, when he became a laureate of the Warsaw Scientific Prize. After the war, Łukasiewicz emigrated to Ireland and taught logic at the University College Dublin until his death. He is the inventor of the Polish notation – the logical symbolism that become the signature of Prior's own logical writings.

The Private Archive of Jacek Jadacki, Warsaw

1935

Jacek Jadacki

Copyright Jacek Jadacki. Used with permission. All rights reserved

AP230, AP230a

JPEG

AP230b

b/w photograph