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Entity > Abstract > Class > Relation > BinaryRelation > ReflexiveRelation
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ReflexiveRelation comparison table
Subject have domain2 have domain1 be first domain of be second domain of documentation have axiom is a kind of is an instance of
connectedObjectObjectvalencesubrelation(connected ?OBJ1 ?OBJ2) means that ?OBJ1 meetsSpatially ?OBJ2 or that ?OBJ1 overlapsSpatially ?OBJ2
(=>
(crosses ?OBJ1 ?OBJ2)
(not
(connected ?OBJ1 ?OBJ2)))
 SymmetricRelation
EquivalenceRelation  trichotomizingOninverseA BinaryRelation is an equivalence relation if it is a ReflexiveRelation, a SymmetricRelation, and a TransitiveRelation
(=>
(instance ?REL TransitiveRelation)
(forall (?INST1 ?INST2 ?INST3)
(=>
(and
(holds ?REL ?INST1 ?INST2)
(holds ?REL ?INST2 ?INST3))
(holds ?REL ?INST1 ?INST3))))
TransitiveRelation 
PartialOrderingRelation  trichotomizingOninverseA BinaryRelation is a partial ordering if it is a ReflexiveRelation, an AntisymmetricRelation, and a TransitiveRelation
(=>
(instance ?REL TransitiveRelation)
(forall (?INST1 ?INST2 ?INST3)
(=>
(and
(holds ?REL ?INST1 ?INST2)
(holds ?REL ?INST2 ?INST3))
(holds ?REL ?INST1 ?INST3))))
TransitiveRelation 
partlyLocatedRegionObjectvalencesubrelationThe predicate of partial localization. For example, Istanbul is partly located in Asia. Note that this is the most basic localization relation: located and exactlyLocated are both subrelations of partlyLocated
(=>
(partlyLocated ?OBJ ?REGION)
(overlapsSpatially ?OBJ ?REGION))
 SpatialRelation

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