A.16:4.7 - One history threshold
A local note is sufficient when the move or short chain is reconstructible without extra lineage machinery. Use A.16.0 only when at least one of these is load-bearing:
- derivation, supersession, fork, merge, or retirement structure;
- a multi-move history whose compression would hide a change in the applicable pattern or rule;
- loss notes or reopen conditions spanning more than one move; or
- an actual responsibility handoff, Bridge entry, or viewpoint entry whose legitimacy or interpretation depends on upstream history.
A.16 defines move admissibility and A.16.0 packages the trajectory account. A graph representation alone does not establish a TransformationFlowStructure. Use E.18 only for an independently selected structure that meets its rules, and E.18.2 for a mathematical description of that structure. Publication faces and bounded audience availability remain under E.17 and E.24.PUB; use C.29 when mathematical-lens adequacy is the current question.