Declarations

. No state, positivity axiom, representation, antifield, antibracket, interacting differential, time-ordered product, quantum retarded product, loop construction, or $\epsilon \to 0$ limit is included. The Einstein-subshell and undetected-observation questions remain unresolved.

obstruction. The exclusion conclusions depend on the explicitly stated XI-G input theorem. This manuscript does not claim an independent verification of that predecessor's class obstruction. The proof ledger distinguishes copied results from proofs given here.

. The source has been revised for mathematical convention consistency and LaTeX hygiene. No successful pdflatex execution, proof-assistant check, independent referee review, or journal acceptance is asserted.