Stanisław Jaśkowski
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Stanisław Jaśkowski (1906 April 22 – 1965 November 16) was a Polish logician who made important contributions to proof theory and semantics. He was a student of Jan Łukasiewicz and a member of the Lwów–Warsaw School of Logic.
Jaśkowski is considered to be one of the founders of natural deduction, which he discovered independently of Gerhard Gentzen in the 1930s. (Gentzen's approach became more popular.) He was also one of the first, if not the first, to propose a formal calculus of inconsistency-tolerant (or paraconsistent) logic. Furthermore, Jaśkowski was a pioneer in the investigation of both intuitionistic logic and free logic.
[edit] References
- Jerzy Perzanowski (1999). "Fifty Years of Parainconsistent Logics". Logic and Logical Philosophy 7: 21–24.
- Woleński, Jan (2003). Lvov-Warsaw School. The Standford Encyclopedia of Philosophy (Summer 2003 Edition). Retrieved on March 11, 2006.
[edit] External links
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