Identidades a posteriori y hacedores de verdad: modos de salir de una aporía

in my contribution to the discussion, i argue against javier castro albano's contention (2007) that the four theses he presents, which are allegedly prima facie plausible, but nonetheless not simultaneously acceptable, pose a problem to strong truthmaker theories. i try to do so by suggesting that some of these theses have ontologically committed and ontologically innocent readings, and that while their initial plausibility is connected to the latter readings, the problems shown by castro albano arise only when they are read in the former way. but this should not be seen as particularly threatening, because holding any of the relevant theses in this ontologically committed way depends on previous and independent commitments concerning the metaphysics of modality, commitments which at the same time should preclude us from accepting the stronger reading of some of the other theses (avoiding, in this way, the incompatibility pointed out by castro albano).