Putanga 1: Ko te tātai mokowā nekeneke tīmatanga _ 13 e kiia ana ko te ahanoa tīmatanga'', he hanganga topological ranei'' e pa ana ki nga raraunga kua hoatu. Putanga 2: Ka kīia te mokowā nekeneke tuatahi Formula 13 he ahanoa taketake ``, he'' hanganga topological rānei e pā ana ki ngā raraunga kua hoatu. Pātai: He ōrite te tikanga o te rerenga 1 me te rerenga 2? He Ae, he Kore rānei?
Āe, āe