Philosophy Dictionary of ArgumentsHome | |||
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Natural deduction, logic: is a calculus by Gerhard Gentzen (Gentzen, “Untersuchungen über das logische Schließen“. In Mathematische Zeitschrift Band 39, 1935, pp. 176–210, 405–431), which largely manages without axioms and instead works with introductory and eliminating rules for the operators used. Assumptions that are needed in the course of time can be partly eliminated later. See also axiomatization, axiom systems, axioms, inference._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. | |||
Author | Concept | Summary/Quotes | Sources |
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H. Wessel on Natural Deduction - Dictionary of Arguments
I 201 Natural deduction/quantifier logic: here we have only definite descriptions; individual constants construed only as abbreviations for definite individual terms, not as a variable. >Variables, >Individual constants, >Descriptions, >Definite descriptions, >Singular terms._____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. Translations: Dictionary of Arguments The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition. |
Wessel I H. Wessel Logik Berlin 1999 |