Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
manifold
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: structure-based → ⊑
Manifolds are primarily defined by their physical configuration: a chamber/container with multiple openings that enables fluid distribution. While they serve a distribution function, their identity is grounded in the structural arrangement of multiple ports/connections rather than a specific functional role.
Validation status
Why primitive (necessary only)
Reviewer notes
FOL theory & disjointness
First-order logic theory (generated)
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Disjoint with
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Expert review
Axiomatization steps
1
Identity-Giving Function
✓ done
FluidDistributionFunction → FluidDistributionProcess ⊑ MomentumTransfer
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COPI-Core operation
MomentumTransfer via process parent MomentumTransfer
LLM rationale:
All definitions consistently point to distribution/routing of fluids as the core function. This is distinct from transport (pipeline) or control (valve) - it's about splitting/combining fluid streams through multiple openings.
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Expert review
2
Genus Proximus
✓ done
Assembly
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Genus (genus proximum)
Most specific superclass — may be a domain class like "Valve" or an IOF-Core root.
BFO/IOF-Core Root
bfo:Object branch
bfo:ObjectAggregate branch
bfo:ImmaterialEntity branch
LLM rationale:
Manifolds are causally unified assemblies with removable subcomponents (valves, piping connections, instrumentation). They have a single causal boundary despite containing multiple parts. None of the parent candidates (ARTEFACT, FLUID CONDUCTOR, piping equipment, Static Equipment) represent the most specific appropriate superclass - manifold is itself a fundamental equipment category at the Assembly level.
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Expert review
3
Differentia Specifica
✓ done
∃hasComponentPartAtAllTimes.Chamber ⊓ ∃hasComponentPartAtAllTimes.MultipleFluidOpenings ⊓ ∃bearerOf.FluidDistributionFunction
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Conditions that distinguish
Manifold
from sibling classes under genus
Assembly.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The chamber with multiple openings is the defining structural characteristic that enables the distribution function and distinguishes manifolds from other assemblies.
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Expert review
4
Necessary Parts
✓ done
Chamber, FluidOpening
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Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These parts constitute the minimal structural configuration that enables the distribution function across all manifold types.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PortionOfFluid → PortionOfFluid
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Manifolds can operate in distribution mode (1 input, n outputs) or collection mode (n inputs, 1 output), with fluid composition preserved but flow characteristics modified.
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Expert review
More
Alternative labels
none
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Synonyms / alternative labels (comma-separated) — skos:altLabel
Language auto-detected on export (PT if the label contains accents, EN otherwise).
Properties as BFO qualities
0 of 19 selected
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Select which CFIHOS/DEXPI properties inhere in every instance of Manifold as
bfo:Quality subclasses.
Each selected property →
:ManifoldQuality ⊑ bfo:Quality, inheres in :Manifold
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Manifold.
Write the restriction block in Turtle syntax (without the leading
rdfs:subClassOf).
Example: [ owl:onProperty :hasPart ; owl:someValuesFrom :Wellhead ]
Cross-standard divergences
none detected yet
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Click "Detect divergences" to analyse cross-standard disagreements for this cluster.
