Book Definitions Theorems Problems Porisms Lemmas Postulates Axioms I 23 34 14 1 - 5 5 II 2 12 2 - - - - III 11 31 6 1 - - - IV 7 - 16 1 - - - V 18 25 - 2 - - - VI 3 23 10 3 - - - VII 22 33 6 1 - - - VIII - 25 2 1 - - - IX - 36 * - 1 - - - X 16 91 24 4 11 - - XI 28 34 5 1 1 - - XII - 16 2 2 2 - - XIII - 12 6 1 3 - - Totals 120 372 93 19 16 5 5 * = Two propositions are stated as problems, but are actually theorems. Also in this book is a proposition with no proof.