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Stanisław Jaśkowski
Polish logician and philosopher (1906-1965) · Poland · On the map · Academics · Died at 59
Stanisław Jaśkowski was a Polish logician who made important contributions to proof theory and formal semantics. He was a student of Jan Łukasiewicz and a member of the Lwów-Warsaw School of Logic.
Stanisław Jaśkowski is read about 8 times a day, in 10 languages.
A typical day, 30 days to 24 June 2026
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About this person
He is regarded as one of the founders of natural deduction, which he discovered independently of Gerhard Gentzen in the 1930s. He is also known for his research into paraconsistent logic. He was the President (rector) of the Nicolaus Copernicus University in Toruń.
