Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
filter press
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: both
Filter press combines a functional parent (filter with FiltrationFunction) and constructive differentia (pressurized mechanism for mechanical force application). The ISO 15926 definition explicitly states it is both a FILTER and a PRESS(machine), indicating dual nature.
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
FiltrationFunction → FiltrationProcess ⊑ MechanicalSeparation
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COPI-Core operation
MechanicalSeparation via process parent MechanicalSeparation
LLM rationale:
The identity-giving function is FiltrationFunction - separating substances through filtration. This is already established for the parent class Filter in the enriched ontology, and all definitions consistently describe separation as the core purpose.
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Expert review
2
Genus Proximus
✓ done
Filter · 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:
Filter is the most specific appropriate superclass and is already enriched in our ontology with FiltrationFunction and Separator genus. The ISO 15926 definition explicitly states 'A FILTER PRESS is a FILTER', making this the direct genus. Filter is more specific than the generic Separator class.
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Expert review
3
Differentia Specifica
✓ done
∃hasPart.PressureMechanism ⊓ ∃participatesIn.MechanicalCompressionProcess
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Conditions that distinguish
Filter Press
from sibling classes under genus
Filter.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The pressure mechanism and mechanical compression process are the key differentiating features consistently mentioned across sources. The SLB definition emphasizes 'pressurized cell' and ISO 15926 specifies 'compression' as the distinguishing mechanism.
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Expert review
4
Necessary Parts
✓ done
FilterMedium
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Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These parts are necessary for any filter press to perform pressurized filtration - the pressure mechanism enables compression, the filter cell contains the pressurized process, and the filter medium performs the separation.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PortionOfFluid → PortionOfFluid + PortionOfSolid
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Filter press transforms one mixed fluid stream into separate liquid and solid streams through mechanical compression, distinguishing it from passive filtration processes.
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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
no CFIHOS/DEXPI properties
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No CFIHOS/DEXPI properties found for this cluster.
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Filter Press.
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.
