Library / First Principles Framework (FPF) - Core Conceptual Specification
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Source changed 2026-10-03 08:25:59 UTC · snapshot created 2026-10-03 08:26:43 UTC · last check 2026-10-03 09:55:09 UTC

A.6.F:4.7 - Composability and compositionality

Composability and quality compositionality are separate claims. If the text says parts can be assembled, keep that as a structure or use claim. If it says a quality of the whole follows from parts, assign the quality-composition claim to C.25 and C.16-backed measurement or quality claim:

Composability:
  exactGovernedObjectOrClaim: the A.6.M `ModuleInterfaceClaim` content for "A and B can be assembled under interface X"
  selectedClaimBearingEpistemeUse: the exact C.2.1 episteme carrying that claim content
  directRelationPredicateUse?: only an exact domain predicate independently admitted for a direct module-allocation or module-interface relation, with its actual participants
  relationalAssertionUse?: the exact C.2.1 episteme that affirms, denies, or modalizes that admitted predicate, only when such a predicate is current
  obtainingRelationOccurrenceUse?: only when that admitted relation has a same-versus-new-occurrence rule and the receiving use must distinguish one obtaining occurrence through A.6.REL
  reusableDeclarationUse?: one compatible RelationSignature and its declaration-local SlotSpecs, only when repeated typed use needs them
  subjectPatternApplicationRefs: A.6.M for `ModuleInterfaceClaim`; C.2.1 for its claim-bearing episteme; A.6.RCD when a reusable direct relation is needed but absent; A.6.REL only after the direct relation is admitted and one obtaining occurrence must be distinguished; A.6.0 and A.6.5 only for the reusable declaration
Quality compositionality:
  exactGovernedObjectOrClaim: the affected Q-Bundle and the exact structural-characteristic, causal-hypothesis, or evidence-relation claim that this use relies on
  directRelationPredicateUse?: the exact predicate defined or tested through C.16, C.16.Q, or A.10 and its actual participants, only when that relation is current
  relationalAssertionUse?: the exact C.2.1 episteme and its affirmative, negative, or modal quality or evidence claim when that assertion is current
  subjectPatternApplicationRefs: C.25; C.16 or C.16.Q; A.10 only when evidence provenance is the claim being made
Non-admissible:
  successful assembly is not quality propagation

Compositional formalisms may express explicit composition structures and view or model relations. They do not make safety, latency, reliability, or another quality propagate automatically.

A.6.F defines no separate quality-composition record. Use the claim form supplied by the applicable subject pattern. A composite family uses the exact C.25 Q-Bundle, including its bearer, scope, measures, qualification window, mechanisms or status, and evidence. A single characteristic or measurement follows C.16, with C.16.Q used only when quality wording still needs repair; name its bearer, scope, measure, and claim identity. Keep a causal inference with its causal pattern, and use A.10 only when evidence provenance is the claim being made. If those values cannot be named, keep the quality-composition claim unresolved rather than filling an A.6.F-only schema.