C.29.1:9 - Consequences

Useful consequences. A transferred result comes with the correspondence that makes it usable. A failed transfer becomes a specific mathematical finding: two merged cases disagree, an operation lacks a counterpart, a domain is uncovered, or a bound is insufficient. Each finding suggests a repair that is narrower than discarding the whole account.

The method also makes productive simplification possible. Available stock omits separate totals while preserving reservation behavior. A route relaxation omits compatibility while providing a lower bound. Mean and contrast simplify a thermal update, and a bounded contrast suffices for a later threshold decision.

Costs. Recovering operation conditions and proving a comparison can take more effort than repeating a calculation in the source account. For a small one-off calculation, direct derivation may be cheaper. A useful summary can also require richer state than expected when later operations depend on history.

Remaining limits. The pattern does not supply the domain theorem, physical law, numerical algorithm or implementation correctness that a transfer uses. It can expose a missing premise and make that next contribution precise.