Untersuchungen über das logische Schließen. II

게르하르트 겐첸

게르하르트 카를 에리히 겐첸(, 1909년 11월 24일 ~ 1945년 8월 4일)은 독일의 수리논리학자이다. 연역 체계를 발명하여 증명 이론에 큰 공헌을 하였으며 페아노 산술 체계의 일관성을 증명했다.

相继式演算

在证明论和数理逻辑中，相继式演算（又译矢列演算、矢列式演算、序贯演算）是一阶逻辑（和作为它的特殊情况的命题逻辑）、模态逻辑等逻辑的一类。第一个相继式演算

Szekvenskalkulus

A matematikai logikában, a szekvenskalkulus lényegében a formális logikai érvelés egy stílusa, ahol a bizonyítás minden sora feltételes tautológia (Gerhard Gentzen nyomán…

Ґергард Ґенцен

Consecuente

En lógica matemática, un consecuente es un tipo muy general de afirmación condicional.

Théorème d'élimination des coupures

En logique mathématique, le théorème d'élimination des coupures (ou Hauptsatz de Gentzen) est le résultat central établissant l'importance du calcul des séquents.

System L

System L is a natural deductive logic developed by E.J. Lemmon. Derived from Suppes' method, it represents natural deduction proofs as sequences of justified steps.

Natural deduction

In logic and proof theory, natural deduction is a kind of proof calculus in which logical reasoning is expressed by inference rules closely related to the "natural" way…

Устранимость сечений

Устранимость сечений (теорема Генцена, элиминационная теорема) — свойство логических исчислений, согласно которому всякую секвенцию, выводимую в данном исчислении, можно в…

Sequent calculus

Sequent calculus is, in essence, a style of formal logical argumentation where every line of a proof is a conditional tautology (called a sequent by Gerhard Gentzen…

Teorema da eliminação do corte

Cohérence (logique)

Calcul des séquents

Cut-elimination theorem

The cut-elimination theorem (or Gentzen's Hauptsatz) is the central result establishing the significance of the sequent calculus.