Deleting a label versus changing the physical field algebra

If a reduced list lacks the physical scale current, it no longer meets that reported hypothesis of Family 282. It is therefore not a counterexample to the conditional source claim. Conversely, a derivative-closed physical algebra requires a more careful deletion argument than removing one printed name.

Physical-field membership, a distributional identity, and documentary source status are not identical notions. Their shared discipline is only that the necessary membership or hypothesis must be established before it is used.