Exercise 9.8. Let X be a normed space, and let X = (X*)* be the bidual (or double %3D dual) of X. Consider the map Jx: X X defined by (Jxx)(f) = f(x), Prove that Jx is a well-defined linear isometry. I€ X, ƒ € X*.
Exercise 9.8. Let X be a normed space, and let X = (X*)* be the bidual (or double %3D dual) of X. Consider the map Jx: X X defined by (Jxx)(f) = f(x), Prove that Jx is a well-defined linear isometry. I€ X, ƒ € X*.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter6: More On Rings
Section6.2: Ring Homomorphisms
Problem 6E
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