Possible Worlds Semantics
Thus far, three of our episodes (12, 25 and 28 have contained some discussion of possible worlds semantics. Most memorably, we learned in our last episode that John Searle is rather critical of the enterprise. But what is possible worlds semantics? Let’s take a look. This possible worlds business originally stems from the work of 17th-century philosopher and polymath, Gottfried Wilhelm Leibniz. Leibniz got the ball rolling on possible worlds by putting forth the idea that a statement is necessarily true just in case it is true in all possible worlds, and possibly true just in case it is true in some possible world....