Schematic slots and their editorial indexing

The supplied target display is retained as a list of visible slots:

Equation (eq:schematic) is schematic, not an identity. It is not assigned a coefficient name, because doing so could misrepresent an undefined sum as a constructed distribution.

The symbol roles are:

• $F_f$: the baseline tested-observable label;

• $O_1,O_2$: correction labels in the proposed observable bookkeeping;

• $V_1,V_2$: interaction-argument labels in that bookkeeping;

• $R_1,R_2$: first and second retarded-product labels, not defined multilinear maps in this note.

No identification of $V_1$ or $V_2$ with a particular density or action is made. No coupling expansion, $\hslash$ expansion, factorial convention, or renormalization prescription is inferred beyond the literal factor $\frac{1}{2}$ in the supplied display.

For tracking purposes only, the obligations are indexed by

This is an editorial correspondence, not a proof that the source $J_D$ induces these slots.

The local slot $O_2$ is also unconstructed in the supplied material. Discharging obligations 4–6 would not silently settle its status or prove (eq:schematic) to be an expansion identity.