  Fourthly, objections can be directed at the arguments that Draper offers in support of a third substantive premise—namely, that introduced at (6).  Some of the objections directed against this premise are less than impressive—and some seem very implausible indeed, as in the case, for example, of Peter van Inwagen, who has to appeal to quite an extraordinary claim about the conditions that one must satisfy in order to claim that a world is logically possible: