Philosophy Dictionary of ArgumentsHome
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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._____________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. | |||
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Peter Geach on Contradictions - Dictionary of Arguments
I 70/71 Contradictions/Sentence/Geach: Contradictions of sentences can only be achieved through the negation of predicates, never by the negation of a name. >Negation/Geach, >Predicates/Geach, >Sentences/Geach, >Contradiction. I 71 Contradiction: no sentence can have two (non-equivalent) contradictions. Contrary: one sentence may have several contradictory sentences (assertions). >Assertion/Geach. Contradiction occurs only through negation of a predicate, never of the subject. _____________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. |
Gea I P.T. Geach Logic Matters Oxford 1972 |
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> Counter arguments against Geach
> Counter arguments in relation to Contradictions
Ed. Martin Schulz, access date 2024-04-19