Mutual Relation is a condition: distinct multi-relational units remain coherently related across their boundaries while preserving differentiation.
Given that the acts of Inter-Unit Relating and Field-Integrating are determined by how they sustain relational engagement between distinct units and maintain overall field coherence, it cannot not derive twin conditions: Mutual Relation and Field Coherence.
Mutual Relation is the condition produced by Inter-Unit Relating: distinct units are coherently related across their Boundarys while each preserves its own differentiation. The units do not merge or collapse — their distinctness is maintained even as they are held in relation. Together with Field Coherence, Mutual Relation induces Depth Alignment: units must align their Reflexive Sequences to maintain coherent engagement.
Mutual Relation produces Mutual Form — the structure that formalizes this inter-unit coherence.