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  DensityFn

 Sigma KEE - DensityFn
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DensityFn
DensityFn maps an instance of MassMeasure and an instance of VolumeMeasure to the density represented by this proportion of mass and volume. For example, (DensityFn (MeasureFn 3 Gram) (MeasureFn 1 Liter)) represents the density of 3 grams per liter.
Relationships      
Parents PerFn PerFn maps two instances of PhysicalQuantity to the FunctionQuantity composed of these two instances. For example, (PerFn (MeasureFn 2 (MicroFn Gram)) (MeasureFn 1 (KiloFn Gram))) denotes the FunctionQuantity of 2 micrograms per kiogram. This function is useful, because it allows the knowledge engineer to dynamically generate instances of FunctionQuantity.
InstancesabstraitProperties or qualities as distinguished from any particular embodiment of the properties/qualities in a physical medium. Instances of Abstract can be said to exist in the same sense as mathematical objects such as sets and relations, but they cannot exist at a particular place and time without some physical encoding or embodiment.
 fonction binaireThe Class of Functions that require two arguments.
 entit�The universal class of individuals. This is the root node of the ontology.
 functionA Function is a term-forming Relation that maps from a n-tuple of arguments to a range and that associates this n-tuple with at most one range element. Note that the range is a Class, and each element of the range is an instance of the Class.
 InheritableRelationThe class of Relations whose properties can be inherited downward in the class hierarchy via the subrelation Predicate.
 relationThe Class of relations. There are two kinds of Relation: Predicate and Function. Predicates and Functions both denote sets of ordered n-tuples. The difference between these two Classes is that Predicates cover formula-forming operators, while Functions cover term-forming operators.
 relation simpleA Relation is a SingleValuedRelation just in case an assignment of values to every argument position except the last one determines at most one assignment for the last argument position. Note that not all SingleValuedRelations are TotalValuedRelations.
 relation ternaireTernaryRelations relate three items. The two subclasses of TernaryRelation are TernaryPredicate and BinaryFunction.
 relation totalA Relation is a TotalValuedRelation just in case there exists an assignment for the last argument position of the Relation given any assignment of values to every argument position except the last one. Note that declaring a Relation to be both a TotalValuedRelation and a SingleValuedRelation means that it is a total function.
Belongs to Class entit�


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