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

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Text this: Cupping and jump classes in the computably enumerable degrees