(Remark: Think of the reasons for and against classifying “0” with the other cardinals. “Are black and white colours?” In which cases would you be inclined to say so & which not? ‒ ‒ Words can in many ways be compared to chess men. Think of the several ways of distinguishing different kind of pieces in the game of chess (e.g., pawns & “officers”).
     Remember the phrase, “two or more”.)