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abstraction fn (AbstractionFn)

A UnaryFunction that maps a Class into the instance of Attribute that specifies the condition(s) for membership in the Class.

Ontology

SUMO / BASE-ONTOLOGY

Class(es)

Classe
is instance of
  inheritable relation  
is instance of
  FunzioneUnaria  
is instance of
  abstraction fn  

Coordinate term(s)

absolute value fn  arc cosine fn  arc sine fn  arc tangent fn  back fn  begin fn  begin node fn  cardinality fn  ceiling fn  complement fn  cosine fn  cut set fn  denominator fn  end fn  end node fn  extension fn  floor fn  front fn  future fn  generalized intersection fn  generalized union fn  giga fn  imaginary part fn  immediate future fn  immediate past fn  initial node fn  integer square root fn  kilo fn  list length fn  magnitude fn  mega fn  micro fn  milli fn  minimal cut set fn  nano fn  numerator fn  organization fn  past fn  path weight fn  pico fn  power set fn  predecessor fn  principal host fn  probability fn  property fn  rational number fn  real number fn  reciprocal fn  round fn  signum fn  sine fn  skin fn  square root fn  successor fn  tangent fn  tera fn  terminal node fn  wealth fn  when fn  year fn 

Type restrictions

Attributo AbstractionFn(Classe)

Related WordNet synsets

abstraction
a general concept formed by extracting common features from specific examples
kinds of abstraction...   kinds of abstraction (all)...  
abstractionism, unrealism
a representation having no reference to concrete objects or specific examples
abstractionism is kind of (all)...   abstractionism is kind of...  

Axioms (2)

"la descrizione di class" is uguale a attr se e solo se per ogni inst vale: inst é un' istanza di class se e solo se inst ha un attributo attr. 
(<=>
      (equal
            (AbstractionFn ?CLASS)
            ?ATTR)
      (forall
            (?INST)
            (<=>
                  (instance ?INST ?CLASS)
                  (property ?INST ?ATTR))))
"la classe corrispondente a attribute" is uguale a class se e solo se "la descrizione di class" is uguale a attribute. 
(<=>
      (equal
            (ExtensionFn ?ATTRIBUTE)
            ?CLASS)
      (equal
            (AbstractionFn ?CLASS)
            ?ATTRIBUTE))