Economics Dictionary of Arguments

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Equal sign: a symbol, which states that the terms on the left and right hand side refer to the same object. The equal sign is defined for numbers. It has to be redefined when objects from other domains are to be linked. See also identity, equality.
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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

Gottlob Frege on Equal Sign - Dictionary of Arguments

I 109
Equal sign/"="/Frege/(s): the equal sign links objects, not concepts or predicates or properties. However, the copula/(s) links an article with a phrase.
>Concept
, >Object, >Copula, >Identity, >Predicates, >Properties.

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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.

F I
G. Frege
Die Grundlagen der Arithmetik Stuttgart 1987

F II
G. Frege
Funktion, Begriff, Bedeutung Göttingen 1994

F IV
G. Frege
Logische Untersuchungen Göttingen 1993


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