Modal realism

Modal realism is a philosophical position that - according to widely common background assumptions - the truth-maker of Modalaussagen ( statements with modal operators such as " possible ", " necessary" and " contingent " ) issues are possible worlds that are as real existent as the actual world. The term " -update " here is usually understood indexical, ie he presents in the world of the respective subject. The most important and best known representative of a modal realism in the recent systematic ontology is David Kellogg Lewis.