Philosophy Dictionary of Arguments

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 Impossible World - Philosophy Dictionary of Arguments
 
Impossible World: possible worlds are determined by counterfactual descriptions, specifying conditions for the existence of objects or laws, or a listing of instanced properties. The existence of an impossible world is already excluded by the concept. However, an impossible world can e.g. be characterized by the fact that in it all propositions are true. Then, for an arbitrary sentence A applies A is true and non-A is true. Thus, existence is excluded for every object and property. See also possible worlds, modal logic, necessity, possibility, possible world semantics.
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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    More concepts for author
Cresswell, Maxwell J. Impossible World   Cresswell, Maxwell J.
Hintikka, Jaakko Impossible World   Hintikka, Jaakko
Lewis, David K. Impossible World   Lewis, David K.
Logic Texts Impossible World   Logic Texts
Stalnaker, Robert Impossible World   Stalnaker, Robert

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