أرسل هذا في رسالة قصيرة: A unified approach to Banach-Stone theorem on spaces of differentiable functions under various norms

             ___     _    _      ___     _    _   
  ____      / _ \\  | |  | ||   / _ \\  | \  / || 
 |    \\   | / \ || | |/\| ||  / //\ \\ |  \/  || 
 | [] ||   | \_/ || |  /\  || |  ___  ||| .  . || 
 |  __//    \___//  |_// \_|| |_||  |_|||_|\/|_|| 
 |_|`-`     `---`   `-`   `-` `-`   `-` `-`  `-`  
 `-`