← Central Angles & Surface Angles | Central Angles & Surface Angles →
RBF Definitions
". . . Topological domains are clearly defined in terms of
the systems involved having unique centrally angled
insideness and surface angle defined outsideness."
(N.B. After RBF wrote above marginalia he told
EJA that this was the first time he had made the
identification of central angle with insideness.)
