發送短信 : A graphical proof of the brouwer fixed point theorem

 _____      ______    ______    ______            
|  __ \\   /_   _//  /_   _//  /_   _//     ___   
| |  \ ||   -| ||-   `-| |,-    -| ||-     /   || 
| |__/ ||   _| ||_     | ||     _| ||_    | [] || 
|_____//   /_____//    |_||    /_____//    \__ || 
 -----`    `-----`     `-`'    `-----`      -|_|| 
                                             `-`