Jan Łukasiewicz
In the early 1920s, the Polish mathematician Jan Lukasiewicz discovered that if operators were written before the operands (prefix or Polish notation; for example, + a b), the parentheses are not needed. He was born on 21 December 1878 in Lemberg, Galicia, Austria-Hungary and died on 13 February 1956 in Dublin, Ireland. He was aged 77.
More readings
- Łukasiewicz, Jan 1951. Aristotle’s syllogistic from the standpoint of modern formal logic. Oxford University Press. 2nd ed, enlarged 1957. Reprinted by Garland Publishing in 1987. ISBN 0-8240-6924-2
Jan Łukasiewicz Media
Warsaw University Library – at entrance (seen from rear) are pillared statues of Lwów-Warsaw School philosophers (right to left) Kazimierz Twardowski, Jan Łukasiewicz, Alfred Tarski, Stanisław Leśniewski.