Book, Paragraph

1     II,  9| Clearly, then, when any one member, whatever its kind, of the
2    III,  6|   like degrees: for if some member of another genus exhibit
3    III,  6|  than your object, while no member of that genus exhibits that
4     IV,  3|  utterly impossible for any member of the genus to have. Thus (
5     VI,  4|  has defined one coordinate member of a division by another,
6     VI,  6|    that it is a co-ordinate member of a division with this.~