Philosophy Lexicon of Arguments

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Modal Operators: modal operators are symbols for expressing possibility and necessity. These operators do not belong to classical logic, but fall into the field of modal logic. Their placement at the beginning or in the course of formulas determines the relative strength of statements that can be obtained from the interpretation of these formulas. See also range, stronger/weaker, modal logic, possible worlds.
 
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II 148
Modal operator / MO / Montague / Cresswell: (Montague 1974, 286-302): proof, that MO are not predicates of sentences. (Also Anderson 1983) - SkyrmsVsMontague: (1978) denies the importance of this result. It would make a certain sense in which a metalinguistic modal semantics could be given.

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


> Counter arguments against Cresswell



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Ed. Martin Schulz, access date 2017-05-23