public static bool operator <(Volume left, Volume right) => Equality.IsStructureLowerThan(left, right);
public static bool operator <(Weight left, Weight right) => Equality.IsStructureLowerThan(left, right);
public static bool operator <(Energy left, Energy right) => Equality.IsStructureLowerThan(left, right);
public static bool operator <(RadianAngle left, RadianAngle right) => Equality.IsStructureLowerThan(left, right);
public static bool operator <(DegreeAngle left, DegreeAngle right) => Equality.IsStructureLowerThan(left, right);
public static bool operator <(Length left, Length right) => Equality.IsStructureLowerThan(left, right);
public static bool operator <(Area left, Area right) => Equality.IsStructureLowerThan(left, right);
public static bool operator <(Power left, Power right) => Equality.IsStructureLowerThan(left, right);
public static bool operator <(Speed left, Speed right) => Equality.IsStructureLowerThan(left, right);