Release alternatives and inherited contract

The release alternatives are kept distinct:

1. Constructed: the prescribed coefficients descend and glue with all declared existing coefficients, satisfying the copied interfaces on the named sector.

2. Canonical prescription obstructed: an explicit actual-presentation relation or overlap discrepancy contradicts the prescribed coefficients.

3. Contract proved obstructed: a contradiction excludes every coefficient system satisfying the copied interfaces.

4. Unresolved: a required proof remains unfinished.

A missing proof is not an obstruction. Failure of one prescription is not a universal contract obstruction.

Fix one real parent parameter $c$ at the outset. It is not changed by association, presentation, or observation descendant. The results below hold for every such fixed $c$.