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Entity > Abstract > Class > Relation > BinaryRelation > BinaryPredicate > familyRelation

familyRelation
subject			fact

familyRelation	documentation A very general Predicate for biological relationships. (familyRelation ?ORGANISM1 ?ORGANISM2) means that ?ORGANISM1 and ?ORGANISM2 are biologically derived from a common ancestor
	has axiom (=> (familyRelation ?ORGANISM1 ?ORGANISM2) (exists (?ORGANISM3) (and (familyRelation ?ORGANISM3 ?ORGANISM1) (familyRelation ?ORGANISM3 ?ORGANISM2))))
	has axiom (=> (instance ?GROUP FamilyGroup) (forall (?MEMB1 ?MEMB2) (=> (and (member ?MEMB1 ?GROUP) (member ?MEMB2 ?GROUP)) (familyRelation ?MEMB1 ?MEMB2))))
	has domain1 Organism
	has domain2 Organism
	is an instance of BinaryPredicate
	is an instance of EquivalenceRelation
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
Predicate	is first domain of singleValued
Class	is third domain of domain
	is third domain of domainSubclass
Abstract	is disjoint from Physical

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