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Relazione (Relation)

The Class of relations. There are three kinds of Relation: Predicate, Function, and List. 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. A List, on the other hand, is a particular ordered n-tuple.

Ontology

SUMO / BASE-ONTOLOGY

Superclass(es)

[tree]
Entitá
is subclass of
  Astratto  
is subclass of
  Relazione  

Subclass(es)

RelazioneMonovalente  RelazioneAValoreTotale  RelazioneAValoreParziale  RelazioneBinaria  RelazioneDiProbabilitá  RelazioneSpaziale  RelazioneTemporale  RelazioneTernaria  RelazioneQuaternaria  RelazioneQuinquenaria  Lista  Predicato  RelazioneAdAritáVariabile  RelazioneEstesaAQuantitá 

Coordinate term(s)

Attributo  Grafo  ElementoDelGrafo  Proposizione  Quantitá  InsiemeOClasse 

Constrains relations

domain  domain subclass  holds  subrelation  valence 

Related WordNet synsets

relation
an abstraction belonging to or characteristic of two entities or parts together
relation is kind of (all)...   relation is kind of...   kinds of relation...   kinds of relation (all)...  
relationship, human relationship
(`relationship' is often used where `relation' would serve (as in "the relationship between inflation and unemployment")) preferred usage of `relationship' is for human relations or states of relatedness; "the relationship between mothers and children"
relationship is kind of (all)...   relationship is kind of...   kinds of relationship...   kinds of relationship (all)...  
relational
having a relation or being related
relational is similar to...  
See more related synsets on a separate page.

Axioms (6)

Se e ? sono disgiunti e rel é un é membro di "(", allora rel é un' istanza di Relazione.
(=>
      (and
            (disjointRelation @ROW)
            (inList
                  ?REL
                  (ListFn @ROW)))
      (instance ?REL Relation))

Relazione é scomposto disgiuntivamente in RelazioneBinaria,RelazioneTernaria,RelazioneQuaternaria,RelazioneQuinquenaria,RelazioneAdAritáVariabile.
(disjointDecomposition Relation BinaryRelation TernaryRelation QuaternaryRelation QuintaryRelation VariableArityRelation)

Relazione é esaustivamente partizionato in Predicato,Funzione,Lista.
(partition Relation Predicate Function List)

Relazione é esaustivamente partizionato in RelazioneAValoreTotale,RelazioneAValoreParziale.
(partition Relation TotalValuedRelation PartialValuedRelation)

Se rel é un' istanza di Relazione, allora rel( vales se e solo se rel() vale.
(=>
      (instance ?REL Relation)
      (<=>
            (holds ?REL @ROW)
            (?REL @ROW)))

rel é un' istanza di RelazioneAValoreTotale se e solo se esiste valence tale che rel é un' istanza di Relazione e rel %&ha valence argomento(s e
(<=>
      (instance ?REL TotalValuedRelation)
      (exists
            (?VALENCE)
            (and
                  (instance ?REL Relation)
                  (valence ?REL ?VALENCE)
                  (=>
                        (forall
                              (?NUMBER ?ELEMENT ?CLASS)
                              (=>
                                    (and
                                          (lessThan ?NUMBER ?VALENCE)
                                          (domain ?REL ?NUMBER ?CLASS)
                                          (equal
                                                ?ELEMENT
                                                (ListOrderFn
                                                      (ListFn @ROW)
                                                      ?NUMBER)))
                                    (instance ?ELEMENT ?CLASS)))
                        (exists
                              (?ITEM)
                              (holds ?REL @ROW ?ITEM))))))