C.34:9 - Consequences

Positive consequences:

• Architects can use partial sameness without pretending to have identity. This keeps comparison, projection, generated-output admission, realization checks, and decision repair usable.
• Formal methods become useful at the right locus: graph matching, category-theoretic morphisms, entropy, and simulation relations can support the mapping without becoming architecture ontology.
• Cross-context and source-tradition risks are visible early because directionality, scope, bridge loss, and the applicable conformance rules are named.
• Later decisions can be repaired locally: the preservation note says which relation failed, which structure was lost, and which claim or check must be reopened.

Costs and trade-offs:

• C.34 adds friction before easy claims such as “same diagram,” “same graph,” or “same module.” That cost prevents stronger authority from entering through weak similarity.
• The pattern does not prove formal equivalence by itself. When proof, measurement, evidence, assurance, gate, release, or work authorization is current, apply the corresponding rule or test.
• Some comparisons will lower from equivalence to correspondence or near-sameness. That lowering is a success when it prevents a false downstream claim.