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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.
- Further Problems for Concretism
It follows from E that, for every proposition p, there is at...
- Further Problems for Combinatorialism
In particular, it seems conceptually possible that there are...
- Problems With Abstractionism
The proof of the left-to-right direction, however — which...
- Possible Objects
If the sum of w 1 and w 2 is an impossible object, then the...
- Intensional Logic
The formal machinery behind the discussion above traces back...
- Modal Fictionalism
This sociological claim that most philosophers who talk...
- Mental Content
The currently popular identification of propositions with...
- Essential Vs. Accidental Properties
These are what Correia calls globally possible worlds....
- Further Problems for Concretism
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.
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.
- The Editors of Encyclopaedia Britannica
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.
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
Possible worlds. Possible worlds, according to Leibniz's theory, are combinations of beings which are possible together, that is, compossible. A being is possible, for Leibniz, when it is logically possible, i.e., when its definition involves no contradiction.
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.
