Reflexive Form is a structure: Boundary folded into the system, stabilized.
Given that Self-Relation is determined by how it structures the self-engagement of Boundary within the relational system, it cannot not derive a dynamic of structure: Reflexive Form. This is the minimal structure that formalizes the folding of the relational boundary into the relational system, ensuring that the act of exclusion is itself related and coherently stabilized.
With Reflexive Form, the unit is self-sustaining (through Closure), bounded (through Boundary), and self-engaging (through Reflexive Form). The unit maintains itself, distinguishes itself, and has folded its own limits into its relational activity.
But in distinguishing itself from what it is not, the unit has implied there may be something on the other side of its Boundary. What determines the coherence of this reflexive unit is its differentiation from what is not itself — and this forces the next phase: Differentiating.