If there is an isometry between the spaces and , they are said to be isometric. Metric spaces that are isometric are essentially identical.
IF tHerE is aN isomEtRy BetwEeN the spAcEs and , theY ArE Said to be isometRic. mEtRic sPaces that Are iSOmeTRic Are eSseNtiAlLY IDEnTiCaL.