public bool Contains(T value)
{
int compare = value.CompareTo(Value);
if (compare == 0)
{
return(true);
}
if (compare < 0)
{
return(LeftHand == null ? false : LeftHand.Contains(value));
}
else
{
return(RightHand == null ? false : RightHand.Contains(value));
}
}