LISTING The topic is summarized one point after another and listed: I, II, III, IV, V, VI, VII, VIII, IX, X, A, B, C, D, E, F, G, H, I, 1, 2, 3, 4, 5, 6, 7,8,9,10 (i), (ii), (iii), (iv), (v), (vi), (vii), (viii), (ix), (x) a, b, c, d, e, f, g, h, i, Or using decimals: 1.1, 1.2, 1.2.1, 1.2.2, 1.3, 2.1, 2.2, 2.3