What this manuscript attempts

The supplied development places X-L-ST after the free stage X-G-ST, the relative classical stage X-H-ST, and the later classical and finite-operational sheets X-I-ST, X-J-ST, and X-K-ST XGST,XHST,XIST,XJST,XKST. That ordering is documentary. It does not transfer every predecessor theorem or identify their carriers.

The present paper selects the restricted graded direction. Its nonlinear construction is classical. It also gives a conditional interface for a later quantum presentation, but does not assert that the missing quantum hypotheses have been satisfied.

All mathematical inputs used below are displayed as definitions, explicit operator normalizations, or conditional hypotheses. The cited sheets identify the intended comparisons. Their titles and catalogue placement are not substituted for proofs.