# Problem 5. ( chap3. p.87, functional analysis, W.Rudin)

I had done part a, b, and d. But I cannot breakthrough part c, and part e. I restate entire problem in the following:

For $0<p<\infty$, let $l^p$ be the space of all functions $x$ (real or complex, as the case may be) on the positive integers, such that $\sum\limits_{n=1}^\infty|x(n)|^p<\infty$.

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