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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク prime number theorem ： FOLDOC prime number theorem The number of {prime numbers} less than x is about x/log(x). Here "is about" means that the ratio of the two things tends to 1 as x tends to infinity. This was first conjectured by Gauss in the early 19th century, and was proved (independently) by Hadamard and de la Vall'ee Poussin in 1896. Their proofs relied on {complex analysis}, but Erds and Selberg later found an "elementary" proof. (1995-04-10) スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.