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

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發送短信 : On commutative Noetherian rings which satisfy the generalized radical formula