Leibniz on per se possibility

Abstract

This essay critically examines a widely held assumption in interpreting Leibniz's modal metaphysics: that whatever is necessarily actual is necessary. I argue that Leibniz rejected this axiom for principled reasons having to do with his views on the grounding of metaphysical modalities in divine power and intellect (but not divine will). I also argue that if we read him in light of this rejection, his per se possibility theory becomes (contrary to its reception in the literature) quite successful in addressing the problem of necessitarianism.