Text this: The demiclosed principle for multi-valued nonexpansive mappings in Banach spaces

 _____     _    _     ______    _____    _    _   
|  __ \\  | || | ||  /_____//  |  ___|| | |  | || 
| |  \ || | || | ||  `____ `   | ||__   | |/\| || 
| |__/ || | \\_/ ||  /___//    | ||__   |  /\  || 
|_____//   \____//   `__ `     |_____|| |_// \_|| 
 -----`     `---`    /_//      `-----`  `-`   `-` 
                     `-`