Ejemplo n.º 1
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 public Expression(Relation relation, RelationRec relationRec)
 {
     Relation    = relation;
     RelationRec = relationRec;
 }
Ejemplo n.º 2
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 public RelationRec(Operation operation, Relation relation, RelationRec relationRec)
 {
     Operation = operation;
     Relation  = relation;
     Rec       = relationRec;
 }