Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
agitator
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: function-based → ≡
The concept is defined by its identity-giving function of stirring/agitating fluids through moving vanes, rather than by a specific structural mechanism. While it mentions 'moving vanes' and 'propeller-like device', these are general functional descriptions rather than specific constructive mechanisms.
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
AgitationFunction → AgitationProcess ⊑ MomentumTransfer
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COPI-Core operation
MomentumTransfer via process parent MomentumTransfer
LLM rationale:
The identity-giving function is to stir or shake fluids through reaction force from moving vanes, which is a specific type of mixing operation distinct from static mixing or other mixing mechanisms.
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Expert review
2
Genus Proximus
✓ done
Mixer · 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:
The ISO 15926 definition explicitly states agitator is a 'DYNAMIC MIXER'. The already-enriched 'mixer' class (function: MixingFunction, genus: Assembly) is the most specific appropriate superclass. All parent candidates considered: DYNAMIC MIXER (not yet enriched), mixer (enriched), ProcessEquipment (too broad).
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Expert review
3
Differentia Specifica
✓ done
∃bearerOf.AgitationFunction ⊓ ∃hasComponentPartAtAllTimes.MovingVane
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Conditions that distinguish
Agitator
from sibling classes under genus
Mixer.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The differentia captures the specific agitation function (a subtype of mixing) and the characteristic moving vanes mechanism that distinguishes agitators from other dynamic mixers.
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Expert review
4
Necessary Parts
✓ done
MovingVane
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Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These parts are essential for any agitator to perform its function - the vanes create the mixing action, the shaft transmits rotation, and the drive provides the motive power.
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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:
Agitators transform mechanical rotational energy into fluid mixing energy, creating circulation patterns and preventing stratification or settling in the contained fluid.
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Expert review
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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 20 selected
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Select which CFIHOS/DEXPI properties inhere in every instance of Agitator as
bfo:Quality subclasses.
Each selected property →
:AgitatorQuality ⊑ bfo:Quality, inheres in :Agitator
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Agitator.
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.
