Distinction is a condition: the maintained division between relation and non-relation.
Given that Bounding is determined by how it engages with what stands outside the relational unit, it cannot not derive a dynamic of relation: Distinction. This is the condition that maintains the division between relation and what is excluded from relation — the persistent separation of inside from outside.
Distinction follows the same act-condition pattern seen earlier: Bounding does; Distinction holds. As with every condition in the derivation, it calls for a structure to formalize it — which is Boundary.