That, if a straight line falling on two straight lines make the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than the two right angles. The first six books of the Elements of Euclid, with numerous exercises - Seite 21 von Euclides - 1853 - 147 Seiten Vollansicht - Über dieses Buch
