Library / First Principles Framework (FPF) - Core Conceptual Specification
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Source changed 2026-10-03 08:01:07 UTC · snapshot created 2026-10-03 08:04:31 UTC · last check 2026-10-03 08:15:20 UTC

B.2:5.1 - Closed-Loop Regulated System

Parts: plant, sensor, controller, actuator.

Existing-whole repair may be enough if only a sensor improved or a controller parameter changed. B.2 becomes current only when exact constructive relations and a governed assembly close the feedback and supervision around an objective, yielding one exact new whole proposed for recognition under the already admitted U.System kind, whose boundary, external commitments, and capability envelope are no longer explainable as changes of the existing whole. That proposed whole can satisfy A.1 only if its actual boundary, interfaces, relevant characteristics, and identity-preservation conditions also satisfy at least one applicable governed larger-assembly construction method or rule—for example, a rule under which the regulated system can remain one constituent of a larger plant or production system. If that compatibility condition does not hold, the proposed whole fails A.1; if the needed evidence or dependency is unavailable, evaluation remains unknown. Loop closure, a record, or a measurement supplies none of those facts.

MHTTriggerProfile@Control : U.Episteme
  entityOfConcernRef: plant-plus-devices configuration
  content:
    changedSupervisionRelationRefs: closed feedback relation
    changedObjectiveClaimRef: maintain output y near reference r
    changedCapabilityClaimRef: capability envelope after closure

HolonReidentificationRecord@Control : U.Episteme
  entityOfConcernRef: regulated control system
  content:
    existingWholeRef: plant-plus-devices configuration
    selectedTriggerProfileRef: MHTTriggerProfile@Control
    existingWholeExplanationResultRef: ClosedLoopExistingWholeResult
    resultHolonRef: regulated control system
    resultHolonKindRef: U.System
    resultHolonClassificationAssertionRef: RegulatedControlSystemClassificationAssertion
    wholeReidentificationClaimRef: ClosedLoopWholeReidentificationClaim
    changedClaimPatternLocators: A.1, B.1.2, B.2.2, C.30.LCA, A.2.2

The exact EntityOfConcern is an actual participant in the C.2.1 EpistemeConstitutionRelation; EntityOfConcernSlot is only the corresponding declaration-local participant meaning inside EpistemeConstitutionRelationSignature. The entityOfConcernRef field and indented content fields carry participant or claim designations in each episteme; they are not SlotKinds or participants of a new MHT relation. The feedback and capability relations retain their direct identities, while the optional classification assertion retains its own C.2.1 identity and does not establish world-side holonhood.