Theorem 8. Let p1, . . . , pn be points inside a circle such that p1 p2 . . . pn is a right angled polygon when the interior of the circle is viewed as the Cayley–Klein model of the hyperbolic plane. Then Ipn ◦ · · · ◦ Ip1 = id.
Theorem 8. Let p1, . . . , pn be points inside a circle such that p1 p2 . . . pn is a right angledpolygon when the interior of the circle is viewed as the Cayley–Klein model ofthe hyperbolic plane. Then Ipn◦ · · · ◦ Ip1= id.