 Proponents of the other worlds strategy reject both the nuclear-extranuclear strategy and the dual copula strategy. Instead, they assume merely possible and even impossible worlds. All worlds (possible as well as impossible ones) share the same domain of discourse. But not all objects of the domain exist in all worlds. Thus, Pegasus does not exist in the actual world, but it exists in a variety of merely possible worlds (namely in those which are such as represented by the Greek mythology).