|Cross-world identity, philosophy: is an expression for the problem of how to determine the identity of an object by accepting properties that it does not have in the actual world. Is it meaningful to say that Paul could have been taller in a possible world than he actually is, or would Paul be another individual then? See also possible worlds, modal realism, counterpart theory, counterpart relation, counterparts, telescope theory, centered worlds.|
Books on Amazon
|EMD II 303
WigginsVsKripke: even if names are rigid designators: the question remains whether we can evaluate sets of names for all the worlds ("necessary existence") - Problem: cross world identity.
Essays on Identity and Substance Oxford 2016
G. Evans/J. McDowell
Truth and Meaning Oxford 1977
The Varieties of Reference (Clarendon Paperbacks) Oxford 1989