Philosophy Lexicon of Arguments

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I 103
Impossible World/imposs.w./Stalnaker/Cresswell: Problem: the concept of possibility is itself defined in terms of possible worlds. - Then impossible worlds permit merely an extra-strong concept of impossibility: truth in no world. Problem: then a logically impossible proposition can never be true. - Contradiction: then there can only be as many propositions as possible worlds. - But there must be at the same time as many prepositions as sets of possible worlds. - ((s) All, only if one accepts them as basic concepts or primitive entities).


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
> Counter arguments in relation to Impossible World



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Ed. Martin Schulz, access date 2017-05-25