[81.] PROBL. VIII. PROP. XXIII.
[82.] PROBL. IX. PROP. XXIV.
[83.] PROBL. X. PROP. XXV.
[84.] PROBL. XI. PROP. XXVI.
[85.] SCHOLIVM I.
[86.] SCHOLIVM II.
[87.] PROBL. XII. PROP. XXVII.
[88.] PROBL. XIII. PROP. XXVIII.
[89.] PROBL. XIV. PROP. XXIX.
[90.] PROBL. XV. PROP. XXX.
[91.] PROBL. XVI. PROP. XXXI.
[92.] THEOR. XIII. PROP. XXXII.
[93.] THEOR. IV. PROP. XXXIII.
[94.] MONITVM.
[95.] THEOR. XV. PROP. XXXIV.
[96.] THEOR. XVI. PROP. XXXV.
[97.] THEOR. XVII. PROP. XXXVI.
[98.] COROLL.
[99.] THEOR. XIII. PROP. XXXVII.
[100.] THEOR. XIX. PROP. XXXVIII.
[101.] LEMMA IV. PROP. XXXIX.
[102.] THEOR. XX. PROP. XXXX.
[103.] COROLL.
[104.] THEOR. XXI. PROP. XXXXI.
[105.] COROLL.
[106.] THEOR. XXII. PROP. XXXXII.
[107.] ALITER.
[108.] COROLL. I.
[109.] COROLL. II.
[110.] LEMMA V. PROP. XXXXIII.