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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 Concept Summary/Quotes Sources

Jaakko Hintikka on Possible Worlds - Dictionary of Arguments

II 74
Possible Worlds/VsSemantics of Possible Worlds/Hintikka: problem: possible worlds seem to take the worlds and complete sets of possibilia as self-evident.
Possible Worlds/Leibniz: thesis: there is a determined set of worlds among which God makes a selection.
>Possible worlds/Leibniz
HintikkaVsLeibniz: that is extremely doubtful.
Possible Worlds/Hintikka: we should rather call it world stories or scenarios.
II 75
We can limit the set of worlds to those that are conceivable.
Semantics of Possible Worlds/Hintikka: one can build a theory of questions and answers on the semantics of possible worlds.
>Questions/Hintikka, >Answers/Hintikka.
II 76
This is about what is possible in more than one world. For this, we must assume much more than is assumed in an extensional language.
Reference/semantics of possible worlds: here it is not enough to accept only the referents which have our expressions in the actual world.
II 196
Possible World/individual area/HintikkaVsKripke: one should not demand that the individuals must remain the same when changing from world to world. The talk of worlds is empty, if there are no possible experiences that could make them different.
Possible Worlds/Hintikka: possible worlds should be best determined as by the connected possible totals of experience.
And then separation cannot be ruled out.
>Cross world identity, >Centered worlds.

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. Translations: Dictionary of Arguments
The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition.

Hintikka I
Jaakko Hintikka
Merrill B. Hintikka
Investigating Wittgenstein
German Edition:
Untersuchungen zu Wittgenstein Frankfurt 1996

Hintikka II
Jaakko Hintikka
Merrill B. Hintikka
The Logic of Epistemology and the Epistemology of Logic Dordrecht 1989

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> Counter arguments against Hintikka
> Counter arguments in relation to Possible Worlds

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