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Gerhard Gentzen - Wikipedia
Gerhard Karl Erich Gentzen (24 November 1909 – 4 August 1945) was a German mathematician and logician. He made major contributions to the foundations of mathematics, proof theory, especially on natural deduction and sequent calculus. He died of starvation in a Czech prison camp in Prague in 1945. See more
Gentzen was a student of Paul Bernays at the University of Göttingen. Bernays was fired as "non-Aryan" in April 1933 and therefore Hermann Weyl formally acted as his supervisor. Gentzen joined the See more
Gentzen's main work was on the foundations of mathematics, in proof theory, specifically natural deduction and the sequent calculus. His cut-elimination theorem is the … See more
• "Über die Existenz unabhängiger Axiomensysteme zu unendlichen Satzsystemen". Mathematische Annalen. 107 (2): 329–350. 1932. doi:10.1007/bf01448897. S2CID 119534269.
• "Untersuchungen über das logische Schließen. I" See moreWikipedia text under CC-BY-SA license Gentzen's consistency proof - Wikipedia
Gentzen's consistency proof is a result of proof theory in mathematical logic, published by Gerhard Gentzen in 1936. It shows that the Peano axioms of first-order arithmetic do not contain a contradiction (i.e. are "consistent"), as long as a certain other system used in the proof does not contain any contradictions either. This other system, today called "primitive recursive arithmetic with the additional principle of quantifier-free transfinite induction up to the ordinal ε0", is neither w…
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Sequent calculus - Wikipedia
In mathematical logic, sequent calculus is a style of formal logical argumentation in which every line of a proof is a conditional tautology (called a sequent by Gerhard Gentzen) instead of an …
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Gerhard Gentzen - Wikipedia, la enciclopedia libre
Gerhard Gentzen (Greifswald, Alemania, 24 de noviembre de 1909 - Praga, República Checa, 4 de agosto de 1945) fue un matemático y lógico alemán. Fue un estudiante de Weyl en la …
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格哈德·根岑 - 维基百科,自由的百科全书
格哈德·根岑( Gerhard Karl Erich Gentzen ,1909年11月24日—1945年8月4日)是德国的数学家和逻辑学家。
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Cut-elimination theorem - Wikipedia
The cut-elimination theorem (or Gentzen's Hauptsatz) is the central result establishing the significance of the sequent calculus. It was originally proved by Gerhard Gentzen in part I of …
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Gerhard Gentzen — Wikipédia
Gerhard Gentzen (24 novembre 1909 à Greifswald - 4 août 1945 à Prague) est un mathématicien et logicien allemand, dont l'œuvre est fondamentale en théorie de la démonstration. Il fut l’un …
Gerhard Gentzen (1909 - 1945) - Biography - MacTutor History of ...
Nov 24, 2013 · Gerhard Gentzen invented a 'natural deduction' which provided a logic closer to mathematical reasoning than the systems proposed by Frege, Russell and Hilbert. Gerhard …
Gerhard Gentzen - Wikipedia
Gerhard Karl Erich Gentzen (Greifswald, 24 novembre 1909 – Praga, 4 agosto 1945) è stato un matematico e logico tedesco. In giovane età rimase orfano per la morte del padre nel corso …
Gerhard Gentzen – Wikipedie
Gerhard Karl Erich Gentzen (24. listopadu 1909, Greifswald, Německo – 4. srpna 1945, Praha, Československo) byl německý matematik a logik. Jeho hlavní práce tkví v základech …
Gentzen formal system - Encyclopedia of Mathematics
Jun 5, 2020 · Gentzen formal systems are subdivided into systems of natural derivations (or natural deduction systems, which imitate the form of ordinary mathematical derivations, and …
Gerhard Gentzen | German mathematician | Britannica
…introduced by the German logician Gerhard Gentzen (1909–45) and was initially for first-order logic. His system is known as a sequent calculus. Gentzen was able to prove in terms of …
Gentzen - Wikipedia
Pages for logged out editors learn more. Contributions; Talk; Gentzen
Gerhard Gentzen - Wikiwand
Gerhard Karl Erich Gentzen (24 November 1909 – 4 August 1945) was a German mathematician and logician. He made major contributions to the foundations of mathematics, proof theory, …
Mathematician:Gerhard Karl Erich Gentzen - ProofWiki
German mathematician and logician who made progress in symbolic logic . Introduced one of the first systems of natural deduction . Proved that the Peano axioms are consistent. German. …
Gerhard Gentzen — Wikipedia Republished // WIKI 2
Gerhard Karl Erich Gentzen (24 November 1909 – 4 August 1945) was a German mathematician and logician. He made major contributions to the foundations of mathematics, proof theory, …
Gerhard Gentzen – Wikipedia
Gerhard Karl Erich Gentzen (* 24. November 1909 in Greifswald; † 4. August 1945 in Prag) war ein deutscher Mathematiker und Logiker. Gerhard Gentzen studierte in Greifswald, Göttingen, …
Getzen - Wikipedia
The Getzen Company is a family-owned manufacturer and wholesaler of brass instruments. The present product portfolio consists of trumpets, cornets, flugelhorns, trombones, and a baritone …
Gerhard Gentzen - Wikipedia
Gerhard Karl Erich Gentzen (n. 24 noiembrie 1909 - d. 4 august 1945) a fost un matematician și logician german. A adus contribuții însemnate în fundamentele matematicii, teoria …
Gerhard Gentzen - Scientific Lib
Gerhard Karl Erich Gentzen (November 24, 1909, Greifswald, Germany – August 4, 1945, Prague, Czechoslovakia) was a German mathematician and logician. He had his major contributions in …
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