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  1. plato.stanford.edu › entries › possible-worldsPossible Worlds - Stanford Encyclopedia of Philosophy

    Oct 18, 2013 · Although ‘possible world’ has been part of the philosophical lexicon at least since Leibniz, the notion became firmly entrenched in contemporary philosophy with the development of possible world semantics for the languages of propositional and first-order modal logic.

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  3. en.wikipedia.org › wiki › Possible_worldPossible world - Wikipedia

    A possible world is a complete and consistent way the world is or could have been. Possible worlds are widely used as a formal device in logic, philosophy, and linguistics in order to provide a semantics for intensional and modal logic.

  4. www.britannica.com › topic › possible-worldPossible world | Possible Worlds, Modal Logic, Ontology

    Learn about the concept of a possible world, a total way the universe might have been, and its applications in logic, philosophy, and theology. Explore Leibniz's best of all possible worlds argument, Voltaire's satire, and other related topics.

    • The Editors of Encyclopaedia Britannica

  5. link.springer.com › referenceworkentry › 10Possible World | SpringerLink

    Jan 1, 2024 · A possible world is a complete way things might be, alternative to the actual world. Learn about the philosophical and logical aspects of possible worlds, from Leibniz to modal logic and possibilism.

    • Volker Gadenne

  6. plato.stanford.edu › entries › logic-modalModal Logic - Stanford Encyclopedia of Philosophy

    Feb 29, 2000 · In propositional logic, a valuation of the atomic sentences (or row of a truth table) assigns a truth value \ ( (T\) or \ (F)\) to each propositional variable \ (p\). Then the truth values of the complex sentences are calculated with truth tables. In modal semantics, a set \ (W\) of possible worlds is introduced.

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  8. plato.stanford.edu › entries › possible-worldsPossible Worlds > Notes (Stanford Encyclopedia of Philosophy)

    Notes to Possible Worlds. 1. For important applications of possible worlds, see the SEP entries on supervenience, rigid designators, two-dimensional semantics, conditionals, the logic of belief revision, common knowledge, and belief. A particularly illustrative possible worlds analysis of the concept of prudence is found in Bricker 1980. 2.

  9. link.springer.com › chapter › 10Possible Worlds Theory: History, Approaches, and Its Relevance to...

    Sep 11, 2020 · Learn how Possible Worlds Theory, a philosophical logic framework, can be applied to analyse counterfactual historical fiction. Explore the development of the theory from Leibniz to Kripke and its relevance to narratology.