Philosophy Lexicon of Arguments

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Possible World: entity that can be quantified over. There ist a dispute over the question whether possible worlds exist or are only assumed for purposes of proofs of completeness. See also actual world, modal logic, modal realism, realism, actualism, possibility, possibilia, quantification.

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.

Author Item Summary Meta data
Possible World/possible world/Cresswell: Main problem: how to adapt propositional attitudes.
I 1
It does not matter if they exist, how it does not matter whether money or surrogate money is needed.
I 6
It is pointless to want to decide about existence. - LewisVs ersatz world: made from other things - e.g. from space time-points.
I 4
Possible worlds are never part of the actual word.
I 30
Therefore, they are also not "out there" (otherwise still part).
I 16
We also do not have enough names for all possible worlds to put our empirical data into order. (Analogy: as we must postulate the past in order to arrange our present evidence).
I 56f
Possible World/Cresswell: we can equate any possible world with the set of things (objects) that exist in it. ((s) not an empty space.) - Barcan formula: is valid for quantifiers, which can operate in any possible world on those things which exist in this 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 Worlds

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Ed. Martin Schulz, access date 2018-06-21