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Entity > Abstract > Class > Relation > BinaryRelation > AntisymmetricRelation > AsymmetricRelation > properPart

properPart
subject			fact

properPart	documentation (properPart ?OBJ1 ?OBJ2) means that ?OBJ1 is a part of ?OBJ2 other than ?OBJ2 itself. This is a TransitiveRelation and AsymmetricRelation (hence an IrreflexiveRelation)
	has axiom (<=> (properPart ?OBJ1 ?OBJ2) (and (part ?OBJ1 ?OBJ2) (not (part ?OBJ2 ?OBJ1))))
	has axiom (=> (and (fills ?OBJ ?HOLE1) (properPart ?HOLE2 ?HOLE1)) (completelyFills ?OBJ ?HOLE2))
	has axiom (=> (and (fills ?OBJ1 ?HOLE) (properPart ?OBJ2 ?OBJ1)) (properlyFills ?OBJ2 ?HOLE))
	has axiom (=> (and (hole ?HOLE ?OBJ1) (hole ?HOLE ?OBJ2)) (exists (?OBJ3) (and (properPart ?OBJ3 (MereologicalProductFn ?OBJ1 ?OBJ2)) (hole ?HOLE ?OBJ3))))
	has axiom (=> (and (instance ?HOLE1 Hole) (properPart ?HOLE2 ?HOLE1)) (exists (?OBJ) (and (meetsSpatially ?HOLE1 ?OBJ) (not (meetsSpatially ?HOLE2 ?OBJ)))))
	has axiom (=> (instance ?HOLE1 Hole) (exists (?HOLE2) (properPart ?HOLE2 ?HOLE1)))
	is an instance of AsymmetricRelation
	is an instance of TransitiveRelation
BinaryRelation	is first domain of DomainFn
	is first domain of equivalenceRelationOn
	is first domain of inverse
	is first domain of irreflexiveOn
	is first domain of partialOrderingOn
	is first domain of RangeFn
	is first domain of reflexiveOn
	is first domain of totalOrderingOn
	is first domain of trichotomizingOn
	is second domain of inverse
Class	is third domain of domain
	is third domain of domainSubclass
Abstract	is disjoint from Physical

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