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tautology

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tautology

tautology   Reference library

The Oxford Companion to the Mind (2 ed.)

Reference type:
Subject Reference
Current Version:
2006
Subject:
Science and technology, Psychology, Philosophy
Length:
143 words
In logic, saying the same thing in a different way, often unwittingly. For example, ‘A fair-haired blonde’ is tautologous if ‘fair-haired’ and ‘blonde’ are taken to have the same meanings. ... More
tautology

tautology   Reference library

Ruth Barcan Marcus

The Oxford Companion to Philosophy (2 ed.)

Reference type:
Subject Reference
Current Version:
2005
Subject:
Philosophy
Length:
167 words
A well-formed formula ϕ of the propositional calculus is a tautology if the formula is true whatever truth-values are assigned to its basic (atomic) propositional components. This can be ... More
tautology

tautology   Quick reference

The Oxford Dictionary of Phrase and Fable (2 ed.)

Reference type:
Subject Reference
Current Version:
2006
Subject:
Language reference, History of English, Literature, Literary theory and cultural studies
Length:
30 words

the saying of the same thing twice over in different words, generally considered to be a fault of style (e.g. ...

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