Philosophy Lexicon of Arguments

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Cresswell, M.J.
 
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Accessibility HC I 67f
Accessibility / possible worlds / Hughes / Cresswell: many authors: from conceivability or imaginability - e.g. game: the visibility relation between players - invisible worlds are not taken into account - always considered conceivability of worlds from the actual world: corresponding system T - necessity / T: Truth in a selected set of worlds - T: necessity: only considers worlds that we can imagine - S4: transitivity of conceivability: what could be conceivable in other worlds - (i.e. conc. in a poss. world, which in turn can be imagined from the actual world) - then other necessity: truth in all worlds - S5: all are visible to all, not a question of imagination.

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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Ed. Martin Schulz, access date 2017-03-30