Philosophy Lexicon of Arguments

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Semantics of possible worlds: is an expression for a theory that defines sentence meaning as the set of worlds in which this sentence is true. See also possible worlds, rigidity, semantics, propositions, meaning, modal logic, counterpart-theory, modal realism, necessity, possibility.

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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I 99
Possible World Semantics/Cresswell: Advantage: allows quantification in belief contexts.
II 72
Definition true/truth/semantics of possible worlds/Cresswell: a sentence is true in a possible world iff this world is in the set of worlds, which is its intension (of the sentence). - Cresswell: therefore it can be said that the extension of the theorem is its truth value (> Frege).
II 163
Possible World Semantics/possible world/FieldVsPossible World Semantics/Cresswell: (Field 1978, 40) the use of possible worlds binds someone to a general concept of synonymy.
II 163
Possible World Semantics/Cresswell: allows an immediate access to terms such as entailment and inconsistency. That is, meaning postulates are superfluous.
II 164
Definition Entailment/Possible World Semantics: is simply the class inclusion in the set of possible worlds - Definition contradiction: something that is true in no possible world.

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.

Cr I
M. J. Cresswell
Semantical Essays (Possible worlds and their rivals) Dordrecht Boston 1988

M. J. Cresswell
Structured Meanings Cambridge Mass. 1984

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> Counter arguments against Cresswell
> Counter arguments in relation to Possible World Semantics

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Ed. Martin Schulz, access date 2018-05-25