[241.] MONITVM.
[242.] THEOR. XV. PROP. XXI.
[243.] PROBL. II. PROP. XXII.
[244.] PROBL. III. PROP. XXIII.
[245.] MONITVM.
[246.] THEOR. XVI. PROP. XXIV.
[247.] THEOR. XVII. PROP. XXV.
[248.] COROLL.
[249.] THEOR. XIIX. PROP. XXVI.
[250.] COROLL. I.
[251.] COROLL. II.
[252.] SCHOLIVM.
[253.] LEMMA VI. PROP. XXVII.
[254.] LEMMA VII. PROP. XXVIII.
[255.] LEMMA VIII. PROP. XXIX.
[256.] THEOR. XIX. PROP. XXX.
[257.] SCHOLIVM.
[258.] COROLL.
[259.] LEMMA IX. PROP. XXXI.
[260.] THEOR. XX. PROP. XXXII
[261.] PROBL. IV. PROP. XXXIII.
[262.] PROBL. V. PROP. XXXIV.
[263.] DEFINITIONES. I.
[264.] II.
[265.] LEMMA X. PROP. XXXV.
[266.] THEOR. XXI. PROP. XXXVI.
[267.] THEOR. XXII. PROP. XXXVII.
[268.] SCHOLIVM.
[269.] LEMMA XI. PROP. XXXVIII.
[270.] LEMMA XII. PROP. XXXIX.