Jan Łukasiewicz

Jan Łukasiewicz
Sexo	mascule
Nascentia	1878-12-21 (Lviv)
Decesso	1956-02-13 (Dublin)
Loco de reposo	Mount Jerome Cemetery[*]
Citatania	Polonia, Austria-Hungaria, Second Polish Republic[*], Republica de Irlanda
Educate in	Lviv University[*], University of Warsaw[*]
Occupation	mathematico, philosopho[*], professor universitari[*], computer scientist[*]
Partito politic	Camp of National Unity[*]
Premios	Commander of the Order of Polonia Restituta[*], Hungarian Order of Merit[*], Commander with Star of the Order of Polonia Restituta[*]
Lingua	polonese
Identificatores
ISNI	0000 0001 2120 9100
VIAF	12353616
Commons	Jan Łukasiewicz

Jan Łukasiewicz (21 de decembre, 1878 - 13 de februario, 1956) era un mathematico polonese que nasceva in Lwów, Galicia (al presente in Ukraina). Su travalio mathematic se focalisava in le logica mathematic. Ille pensava innovar in le traditional logica prepositional, le principio de non contradiction e le principio del tertie excludite.

Łukasiewicz travaliava in logica polyvalente, includente su proprie calculo de tres valores, le prime logica de calculo non classic. Ille etiam se dedicava al philosophia, se approximante al aspectos human del creation del theoria scientific con ideas similar a los de Karl Popper.

Ille es le autor, inter altere obras, de Elementos de logica mathematic; Le syllogistica de Aristoteles del puncto de vista del moderne logica formal; Super le theoria intuitionistic del deduction; Un systema de logica modal; Le principio de individuation.

Vita

• 1878 Nascentia
• 1890-1902 Studia con Kazimierz Twardowski in Lwów (Leopolis)
• 1902 Doctorato (mathematica e philosophia), Universitate de Lwów con le plus alte distinction posible
• 1906 Completa su thesis, Universitate de Lwów (Leópolis)
• 1906 Se converte in professor
• 1910 Essayos in le principio de non contradiction e del principio del tertie excludite.
• 1911 Professor extraordinari in Lwów (Leopolis)
• 1915 Invitate al nove Universitate de Varsovia
• 1916 Declarate le nove Regno de Polonia
• 1917 Developpa le calculo propositional trivalente e critica le principio del tertie excludite.
• 1919 Ministro Polonese de Education
• 1920-1939 Professor in le Universitate de Varsovia funda insimul a Stanislaw Leśniewski le scola de logica Lwów-Varsovia (vide tamben Alfred Tarski, Stefan Banach, Hugo Steinhaus, Zygmunt Janiszewski, Stefan Mazurkiewicz)
• 1928 Se marita con Regina Barwinska
• 1946 Exilio in Belgica
• 1946 Se offere un cathedra in le University College Dublin
• 1953 Scribe su autobiografia
• 1956 Mori in Dublin

Axiomatisation del Logica Propositional

Uno del aspectos plus cognoscite del travalio de Łukasiewicz son su axiomatisationes del logica propositional. Un de istes axiomatisationes consiste a pena in tres axiomas que, in notation moderne, pote esser scribite del sequente forma:

• $(p\rightarrow q)\rightarrow ((q\rightarrow r)\rightarrow (p\rightarrow r))$
• $p\rightarrow (\neg p\rightarrow q)$
• $(\neg p\rightarrow p)\rightarrow p)$

A partir duo axiomas, le formulas valide del logica propositional pote esser inferite via substitution e/o modus ponens. Łukasiewicz tamben presentava un revision de un systema axiomatic de Nicod que usa a pena un connective e possede a pena un axioma.

Altere grande attingimento de Łukasiewicz era un notation pro logica propositional non ambigue, sufficiente pro permitter a elimination de parenthesis e altere signos usate pro determinar le objetivo del connectives logic. Iste notation era cognoscite como notation polonese e in ille le connectives logic son prefixate in vice de infixate como accide in le notation usual. Iste notation ha importantia theoric pro le scientias del computation.

Ligamines externe

• Charles Hamblin in anglese

Lecturas in anglese

• Aristotle & Łukasiewicz on the Principle of Contradiction, ed. by Frederick Seddon (Modern Logic, 1996) ASIN 1884905048
• Philosophical Logic in Poland, ed. by Jan Wolenski (Kluwer, 1994) ISBN 0-7923-2293-2
• Jan Łukasiewicz: Elements of Mathematical Logic, Warsaw, Państwowe Wydawnictwo Naukowe, 1963
• Jan Łukasiewicz: Selected Works, Amsterdam, North-Holland, 1970
• Jan Łukasiewicz. Aristotle´s Syllogistic. Oxford: The Clarendon Press (1957)

Iste pagina contine material traducite ab Wikipedia in espaniol. Le articulo original se trova a es:Jan Łukasiewicz, e es usate secundo le mandatos del licentia de Wikipedia.