Let C R n be a non empty convex set and iC R n 0, be the indicator function associated with C Show that for each x C, we have

Question

Let C R n be a non empty convex set and iC   R n  0,   be the indicator function associated with C  Show that for each x C, we have

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Question: Let C R n be a non-empty convex set and iC : R n {0, } be the indicator function associated with C. Show that