Schauder's theorem

$\textbf{Schauder's theorem}$ A bounded linear operator from a Banach space into a Banach space is compact if and only if its adjoint is compact.
$\textbf{Schauder's theorem}$ A bounded linear operator from a Banach space into a Banach space is compact if and only if its adjoint is compact.
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𝐒𝐜𝐡𝐚𝐮𝐝𝐞𝐫’𝐬 𝐭𝐡𝐞𝐨𝐫𝐞𝐦 A bounded linear operator from a Banach space into a Banach space is compact if and only if its adjoint is compact.
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