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   _____   _    _    _    _      ___      _____   
  / ___// | || | || | \  / ||   / _ \\   / ____|| 
  \___ \\ | || | || |  \/  ||  | / \ || / //---`' 
  /    // | \\_/ || | .  . ||  | \_/ || \ \\___   
 /____//   \____//  |_|\/|_||   \___//   \_____|| 
`-----`     `---`   `-`  `-`    `---`     `----`

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Text this: On the ishikawa iteration process in CAT(0) spaces