Tirohia te whiti i raro nei, ka whakahoki i te pātai i muri i roto i te reo ano rite te whiti: Passage: taea te tautuhi wāhi ōrite kē me ōrite te whakamahi i ngā pūnaha o pseudometrics, he huarahi e he tino whai hua i roto i te tātari mahi (ki pseudometrics whakaratohia e seminorms). atu tika, kia f: X × X → R he pseudometric i runga i te huinga X. taea te whakaatu i te whakapakoko whakamuri Ua = f−1 (([0,a]) hoki a > 0 ki te hanga i te pūnaha taketake o entourages o te ōritetanga. te ōritetanga i hangaia e te Ua ko te ōritetanga tautuhia e te kotahi pseudometric f. huaina etahi kaituhi wāhi te topology o nei kua tautuhia i roto i ngā o pseudometrics wāhi matawai. Pātai: Kei hea e taea te tono wāhi ōrite?
tātaritanga mahi