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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.

  2. 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.

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

    Possible world, Conception of a total way the universe might have been. It is often contrasted with the way things actually are. In his Theodicy (1710), G.W. Leibniz used the concept of a possible world in his proposed solution to the theological problem of the existence of evil, arguing that an.

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

    Jan 1, 2024 · Definition. A possible world is a complete way things might be. Possible worlds are alternative worlds one of which is the actual world. Philosophers use the notion of a possible world to define and discuss ideas such as possibility or necessity.

  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.

  7. 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.

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

    Sep 11, 2020 · Possible Worlds Theory is an interdisciplinary theoretical framework that has its roots in philosophy. Philosopher Raymond Bradley ( 2009) points out that the term ‘possible worlds’ entered the philosophical lexicon through the writings of German philosopher, Gottfried Leibniz [1646–1716].