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           __   __  __    __   _    _    _    _   
  ____     \ \\/ // \ \\ / // | || | || | || | || 
 |    \\    \ ` //   \ \/ //  | || | || | || | || 
 | [] ||     | ||     \  //   | \\_/ || | \\_/ || 
 |  __//     |_||      \//     \____//   \____//  
 |_|`-`      `-`'       `       `---`     `---`   
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Text this: A Simpler Proof for the ϵ-δ Characterization of Baire Class One Functions