 Concerning Atomicity, it is also worth noting that (P.7) does not quite say that everything is ultimately made up of atoms; it merely says that everything has atomic  parts.[16]  As such it rules out gunky worlds, but one may wonder whether it fully captures the atomistic intuition. In a way, the answer is in the affirmative. For, assuming Reflexivity and Transitivity, (P.7) is equivalent to the following