In this study, we investigate some properties of soft quasi-sequences and present new results. We then study the completeness normed quasilinear space an analog convergence boundness results quasi sequences in spaces. Moreover, define regular singular subspaces spaces draw several conclusions related to these notions. Afterward, provide examples generalizing well-known linear Additionally, offe...

Let X and Y be real normed spaces f : ? a surjective mapping. Then satisfies { ? ( x ) + y , ? } = ? if only is phase equivalent to linear isometry, that is, ? U where isometry 1 . This Wigner's type result for spaces.