ABSTRACT
This chapter uses the terms "possibility" and "eternal object" interchangeably, but favors the term "possibility". It begins with Whitehead's statement in Part III of Process and Reality that "all the actual entities are positively prehended, but only a selection of the eternal objects". The chapter emphasizes that the genetic account presupposes the coordinate account, but the order of exposition may be different, as noted earlier. It distinguishes between "function", which is negation considered as concrescence, and "operation". The chapter introduces this terminology to clarify a real distinction in Whitehead's account of concrescence and transition. "Elimination" is the term Whitehead uses when considering negative prehension in the mode of concrescence, where the mediation of overlapping actual worlds in the physical background of the various prehended actual entities belongs to the actual world of a concrescing actual entity.
