發送短信 : TURNING DEGREES CONSTRUCTIONS AND THEIR INDUCTION STRENGTH IN REVERSE MATHEMATICS

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