public virtual bool Equals(NumericRangeList <T> other)
 {
     return(NumericRangeCollectionComparer <T> .Default.Equals(this, other));
 }
 public virtual int CompareTo(NumericRangeList <T> other)
 {
     return(NumericRangeCollectionComparer <T> .Default.Compare(this, other));
 }