Psychology Dictionary of ArgumentsHome
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| Equivalence: Relation between sentences. It exists if both sides have the same truth value, so that they are both true or both false._____________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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Maxwell J. Cresswell on Equivalence - Dictionary of Arguments
II 78f Intensional Equivalence/Cresswell: one could replace "steal spoons" by the intensional equivalent substitute "steal spoons and either eat the cheese or not eat the cheese". >Intensionality, >Intensions. Problem: the attribution of propositional attitudes changes the truth value. >Truth values, >Propositional attitudes. II 82 Many ordinary intensional but equivalent singular terms can be replaced. >Singular terms. II 175 Equivalence/Propositional attitude/Cresswell: no logical equivalence can be assumed to be certain. - Therefore also no non-standard logic helps. Not even for E.g. "Fred laughed and Betty laughed" can be interchanged in the sequence - (in belief contexts). Solution/Cresswell: different levels of sensitivity to the structure of the that-sentence - (parts or whole). >That-clause, >That/Cresswell._____________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. |
Cr I M. J. Cresswell Semantical Essays (Possible worlds and their rivals) Dordrecht Boston 1988 Cr II M. J. Cresswell Structured Meanings Cambridge Mass. 1984 |
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> Counter arguments against Cresswell
> Counter arguments in relation to Equivalence
