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18 ott 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.
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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.
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 all-perfect God would actualize the best of all ...
- The Editors of Encyclopaedia Britannica
Possible worlds exist – they are just as real as our world. Possible worlds are the same sort of things as our world – they differ in content, not in kind. Possible worlds cannot be reduced to something more basic – they are irreducible entities in their own right. Actuality is indexical.
23 lug 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.
1 gen 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.
Possible worlds – the very phrase can set the speculative imagination alight. Leibniz suggested that this world was the best of all possible worlds. The suggestion has enraged some, bewildered many, satisfied some and set others to pondering. What is this idea of possible worlds?
