Psychology Dictionary of Arguments

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Contradictions, philosophy: A. Contradiction in a broad sense is conceived in philosophy, for example, in Hegel or Marx, as a fruitful contrast, which gives rise to a further development. B. In bivalent logic, a contradictory statement is a statement of the form A and non-A. Statements of this form cannot be true. See also consistency, theorem of contradiction, multi-valued logic.
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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

Bertrand Russell on Contradictions - Dictionary of Arguments

IV 78
Principle of Contradiction/laws of thought/Russell: a sentence is not a law of thought. - Belief in it is an idea, but not the sentence itself, but a fact concerning the outside world.
>Thought/Frege
.
If that what we believe, were not true of the things of the outer world, the ((s) wrongly assumed) fact that we are forced to think so, would be no guarantee that the sentence cannot be wrong. This shows that it is not a law of thought.
>World/Thinking, >Logic, >Laws of thinking.

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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.

Russell I
B. Russell/A.N. Whitehead
Principia Mathematica Frankfurt 1986

Russell II
B. Russell
The ABC of Relativity, London 1958, 1969
German Edition:
Das ABC der Relativitätstheorie Frankfurt 1989

Russell IV
B. Russell
The Problems of Philosophy, Oxford 1912
German Edition:
Probleme der Philosophie Frankfurt 1967

Russell VI
B. Russell
"The Philosophy of Logical Atomism", in: B. Russell, Logic and KNowledge, ed. R. Ch. Marsh, London 1956, pp. 200-202
German Edition:
Die Philosophie des logischen Atomismus
In
Eigennamen, U. Wolf (Hg), Frankfurt 1993

Russell VII
B. Russell
On the Nature of Truth and Falsehood, in: B. Russell, The Problems of Philosophy, Oxford 1912 - Dt. "Wahrheit und Falschheit"
In
Wahrheitstheorien, G. Skirbekk (Hg), Frankfurt 1996


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