MORE ON HAECCEITISM AND POSSIBLE WORLDS

Anti-haecceitism is the thesis that the universe could not be nonqualitativelydifferent without being qualitatively different. Haecceitism is the denial ofanti-haecceitism.1 In “Haecceitism, Anti-Haecceitism, and Possible Worlds”(Skow 2008), I argued that there are no nontendentious definitions of “haecceitism”and “anti-haecceitism” using possible-worlds talk. For any candidatedefinition of “anti-haecceitism” that uses possible-worlds talk, there is sometheory of possible worlds relative to which that definition is not equivalent toanti-haecceitism