Library / First Principles Framework (FPF) - Core Conceptual Specification
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Source changed 2026-10-03 11:52:20 UTC · snapshot created 2026-10-03 11:53:41 UTC · last check 2026-10-03 13:50:10 UTC

C.29:4.5c - Reopen a used result

C.29 output-change conditions:

New conditionRequired result
validation slice fails, degrades, or no longer matches the stated regimeChange LensUseBoundaryValue to the updated boundary value, update the failure case, narrow the declared lens use, or block prediction-facing use.
a principal rival lens changes the next lens-use actionAdd PrincipalRivalLens? and RivalLensRelation?, or replace the lens for that use.
the intended use or reliance changesReapply :4.4’s single rule. Keep a conditional explanation small when its conditions and use are unchanged; use FullCard plus the relevant validation/receiving result for phenomenon-model or consequential reliance.
source-use relation becomes outdated, contradicted, or demoted to background onlyChange the SourceUseRelation, update the lens-use boundary value, or retire the lens from claim-bearing use.
bridge, causal, measurement, scale, temporal, evidence, assurance, selector, or benchmark claim is being madeName the governing neighboring pattern and keep C.29 to the declared lens-use part.
abstraction, compression, coarse-graining, or latent representation drops a distinction now needed for the declared useAdd SourceReturnCondition?, narrow the use, or block the compressed-lens claim.

Smallest source-return and output-change conditions:

ConditionRequired result
source material or a source family changes the lens family, validation boundary, limitation, or stated use used by this C.29 outputUpdate SourceUseRelation, LensUseBoundaryValue, and OutputChangeCondition?; narrow, replace, or retire claim-bearing use when the new source-use row no longer fits the declared use.
a later source supersedes or contradicts the source-use decision that bounded the lens useMark the source-use decision as superseded or contradicted for that use, then select a new source-use relation, lower the output class, or block claim-bearing use.
a neighboring subject pattern changes the declared lens-use boundary for measurement, evidence, causal use, assurance, Bridge semantics, scale law, selector, benchmark, decision, or workKeep C.29 only for the declared lens-use part and apply the changed subject pattern to the neighboring claim before the C.29 output is reused.
the same lens family starts carrying validation, causal-use, evidence, assurance, selector, benchmark, release, or work claimAdd the subject-pattern application, or narrow the C.29 result to lens-bounded prediction, distinction, obstruction, diagnostic boundary, or stop condition only.
preserved structure or lost structure can no longer be replayed from the source-domain variables, observations, cases, mechanism, or epistemeAdd SourceReturnCondition?, restate PreservedStructure and LostStructure, lower the output class, or block the compressed-lens claim.

AI-assisted thin-echo result rule:

Thin echo or query shapeRequired result
field-like, quantum-like, category-like, manifold, entropy, RG, graph, embedding, or another mathematical prestige head appears aloneDo not answer from the family label. First name the use under repair or state that no C.29 use is being made.
claim being made is causal, measurement, bridge, evidence, temporal, work, assurance, selector, or benchmark-facingName the governing FPF pattern before any C.29 output.
C.29 still applies after the subject-pattern checkReturn at least CandidateMathObject, PreservedStructure, LostStructure, NextLensUseAction, and StopCondition, or downgrade to LensCandidateNote or NoMathLensUseNeededNote.

C.29 edge-case boundary results:

Edge caseRequired result
mechanized proof of a model propertyState assumptions and proven property; empirical evidence or assurance use stays with A.10, B.3, or relevant G patterns.
simulation-calibrated lensScenario exploration is allowed; prediction, decision, or counterfactual reliance needs validation and the neighboring-pattern result named by value.
latent-space visualizationUse learned-lens overlay and stop latent ontology, causal mechanism, or unobserved-variable recovery unless separately governed by the neighboring pattern governing that claim.
isomorphism or equivalence claim named by valueJustify the relation named by value or downgrade LensMappingMode.
multi-lens compositionName the principal lens and neighboring notes; avoid one giant full card that mixes queue, graph, causal, temporal, and assurance authority.
lens becomes accepted domain theoryKeep local domain theory with the domain pattern; durable FPF naming or kind change needs F.18, C.3, F.8, and E.9.
mathematical notation shift onlyUse A.6.3.RT unless mathematical-lens use changes the declared use.
coarsened explanationUse A.6.3.CSC for source-bearing return, narrowed use, and coarsened rendering; cite C.29 only for abstraction adequacy.