Library / First Principles Framework (FPF) - Core Conceptual Specification
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A.6.3:7 - Rationale and SoTA-Echoing

Source or practice lineAdopted moveRejected overreadPractical effect
Lenses, optics, and compositional transformation researchUse identity, composition, conservativity, and explicit loss as checks over episteme-to-episteme construction.The mathematical construction does not itself establish that a direct world-side relation obtains.Viewing arrows can be composed and replayed while operation applications, Work occurrences, and world-side relations remain separately governed.
Bidirectional transformation and model-synchronization practiceMake cross-model correspondence dependencies explicit and test path agreement.A generic correspondence record or graph edge does not establish correspondence.Coverage and consistency viewing declarations cite exact source relations, so broken dependencies can be repaired locally.
Model-based view-as-query practiceTreat query and projection as common construction routes.Query execution does not establish E.17.0 conformance.Generated and directly authored epistemes meet the same independent E.17.0 membership rule.
FPF C.2.1 and E.17.0 architectureKeep episteme identity, viewing construction, conformance, evaluation, work, production, and publication separate.—The next engineering action can rely on the exact relation it actually needs.