| Born | 21 December 1878 (1878-12-21) (age 143) Lwów, Austria-Hungary |
| Died | 13 February 1956 (1956-02-13) (aged 77) Dublin, Ireland |
| Fields | Mathematical Logic • Logic Philosophy • Ethics |
| Full name | Jan Łukasiewicz |
| Known for | |
| Nationality | Polish |
| Institutions | University of Lviv, Warsaw School of Logic • University of Dublin |
| Main contributions | Invented Polish (prefix) notation • Contributed to propositional logic and modal logic |
