Espacio modal y universales estructurales máximos

this work considers the validity of the theory of possible worlds as maximal structural universals in relation with the known criticisms against actualist views on possible worlds. in a first part the modal conception based on universals is summarily exposed. then, the different difficulties are presented. two of those appear especially relevant for the modal theory defended here: (i) the confusion of different indiscernible possibilities, and (ii) the explanation of the nature of the representation of possibilities. after the examination of these difficulties, it is shown how the modal theory based on universals can answer both problems.