並前往https://cantor.math.ntnu.edu.tw/wp-content/uploads/2020/07/%E6%95%B8%E5%AD%B8%E7%B3%BB60%E7%B4%9A%E7%94%B2%E7%8F%AD%E5%AD%B8%E9%95%B7%E5%A7%8A%E7%8D%8E%E5%AD%B8%E9%87%91%E8%A8%AD%E7%BD%AE%E8%BE%A6%E6%B3%95.pdf