[191.] Corollaire I.
[192.] Corollaire II.
[193.] Corollaire III.
[194.] PROPOSITION XII. Theoreme.
[195.] Demonstration.
[196.] Corollaire.
[197.] Définitions.
[198.] PROPOSITION XIII. Theoreme.
[199.] Demonstration.
[200.] Corollaire I.
[201.] Corollaire II.
[202.] Corollaire III.
[203.] Corollaire IV.
[204.] Corollaire V.
[205.] Corollaire VI.
[206.] Remarque.
[207.] Définitions.
[208.] PROPOSITION XIV. Theoreme.
[209.] Démonstration.
[210.] Corollaire I.
[211.] Corollaire II.
[212.] Corollaire III.
[213.] PROPOSITION XV. Theoreme.
[214.] Demonstration.
[215.] Corollaire.
[216.] PROPOSITION XVI. Theoreme
[217.] Demonstration.
[218.] Corollaire.
[219.] Remarque.
[220.] Probleme.