 This argument can also be understood as “separating hard and white,” in that the shape and color of white horses, which are in fact inseparable, are treated as two separate things. If we grant the sophist that naming the color isn’t naming the shape, we have already allowed him to separate shape from color. Referring to the color is of course different from referring to the shape. But naming the object with the color is just naming the object with the shape. Hence we should reject the third premise and insist that naming the color is naming the  shape.[20]