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Originally Posted by zvacet  Just oposite.If you want to talk in terms of diferent frameworks that leed you to modal logic ans semantic of possible worlds.There you will find definition of necessity and possibility.Something is necessary if exist in all possible worlds amd something is possible if can exist in some possible worlds.In short possibility is subset of necessity not vice versa.If you are interested in that Kripke is good source. |
Lately, I don't see much difference between relativism and talk of possible worlds, except that in relativism the "worlds" can interact, or overlap. Which is really why I question the claim that relativism entails that there are no universal truths.
Where relativists get into trouble is assuming things about all the possible worlds.