@incollection{Fine2002-FINVON,editor = {Tamar Szabo Gendler and John Hawthorne},title = {Varieties of Necessity},pages = {253--281},year = {2002},publisher = {Oxford Up},author = {Kit Fine},booktitle = {Conceivability and Possibility},abstract = {It is argued that there are three main forms of necessity--the metaphysical, the natural and the normative--and that none of them is reducible to the others or to any other form of necessity. In arguing for a distinctive form of natural necessity, it is necessary to refute a version of the doctrine of scientific essentialism; and in arguing for a distinctive form of normative necessity, it is necessary to refute certain traditional and contemporary versions of ethical naturalism.}}@