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

   plato.stanford.edu › entries › possible-worlds

   18. Okt. 2013 · Possible Worlds and Modal Logic. 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.

   • Further Problems for Concretism

     It follows from E that, for every proposition p, there is at...

   • Further Problems for Combinatorialism

     The totality of recombinations of these 'atoms' yields a set...

   • The Intensionality of Abstractionist Possible World Semantics

     The Intensionality of Abstractionist Possible World...

   • Problems with Abstractionism

     The proof of the left-to-right direction, however — which...

   • Rigid Designators

     A rigid designator designates the same object in all...

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

   en.wikipedia.org › wiki › Possible_world

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   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.

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     Official Trailer | Cosmos: Possible Worlds | National Geographic UK

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     Cosmos: Possible Worlds | Episode-1 | Neil deGrasse Tyson | Science Documentary | Ency Cosmica ||

     21. Jan. 2024

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     Cosmos: Possible Worlds Season 2 Episode 3

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4. de.wikipedia.org › wiki › Mögliche_WeltMögliche Welt – Wikipedia

   de.wikipedia.org › wiki › Mögliche_Welt

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   Als mögliche Welt bezeichnet man eine die Logik achtende Vorstellung, wie die Realität beschaffen sein könnte – also eine logisch konsistente Gesamtheit von Vorstellungen der möglichen Sachverhalte. Eine Möglichkeitsaussage wird dann insgesamt als wahr bezeichnet, wenn sie in einer solchen Welt („in mindestens einer ...

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

   plato.stanford.edu › entries › logic-modal

   29. Feb. 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.

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

   www.britannica.com › topic › possible-world

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   Learn about the concept of a possible world, a total way the universe might have been, contrasted with the actual world. Explore how philosophers have formalized and used this idea in modal logic, ontology, and theodicy.

   • Autor: The Editors of Encyclopaedia Britannica

7. iep.utm.edu › mod-metaModal Metaphysics | Internet Encyclopedia of Philosophy

   iep.utm.edu › mod-meta

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   An overview of the metaphysical underpinning of modal statements, such as what is possible or necessary. Explores five views of possible worlds: Meinong's Realism, Lewis' Realism, Ersatzism, Fictionalism, and Armstrong's hybrid.

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9. plato.stanford.edu › entries › david-lewisDavid Lewis - Stanford Encyclopedia of Philosophy

   plato.stanford.edu › entries › david-lewis

   23. Juli 2009 · Lewis held that the best theory of modality posited concrete possible worlds. A proposition is possible if and only if it is true at one of these worlds. Lewis defended this view in his most significant book, On the Plurality of Worlds.