 The methods of “division” (Greek: diairesis, Latin: divisio) and “collection” (Greek: sunagoge, Latin: collectio) have their roots in Plato’s later dialogues, and they are common in Ancient Neoplatonic and Aristotelian treatises on logic. Plato tells us that collection and division provide us with a way to understand the relationships between some unity and some plurality (Phaedrus 265d-266b, and Philebus 16c-17a). Division is a process whereby any sort of unity is resolved into a plurality. Collection is the process whereby a plurality is collected into a unity. 