《群論導論(第4版)(英文版)》介紹瞭：Group Theory is a vast subject and, in this Introduction （as well as in theearlier editions）, I have tried to select important and representative theoremsand to organize them in a coherent way. Proofs must be clear, and examplesshould illustrate theorems and also explain the presence of restrictive hypo-theses. ！ also believe that some history should be given so that one canunderstand the origin of problems and the context in which the subjectdeveloped. Just as each of the earlier editions differs from the previous one in a signifi-cant way, the present （fourth） edition is genuinely different from the third.Indeed, this is already apparent in the Table of Contents. The book nowbegins with the unique factorization of permutations into disjoint cycles andthe parity of permutations; only then is the idea of group introduced. This isconsistent with the history of Group Theory, for these first results on permu-tations can be found in an 1815 paper by Cauchy, whereas groups of permu-tations were not introduced until 1831 （by Galois）But even if history
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簡直是教材的範本. 簡明不失全麵，文筆曉暢，步驟詳盡. 還在用⭕️☀️1⃣書當教材的，建議一開始就讀這本 4.10. 還是有非常莫名其妙的錯誤證明的...
评分本書的作者很喜歡介紹曆史，而且對一些問題的處理不同於一般教材。
评分簡直是教材的範本. 簡明不失全麵，文筆曉暢，步驟詳盡. 還在用⭕️☀️1⃣書當教材的，建議一開始就讀這本 4.10. 還是有非常莫名其妙的錯誤證明的...
评分簡直是教材的範本. 簡明不失全麵，文筆曉暢，步驟詳盡. 還在用⭕️☀️1⃣書當教材的，建議一開始就讀這本 4.10. 還是有非常莫名其妙的錯誤證明的...
评分本書的作者很喜歡介紹曆史，而且對一些問題的處理不同於一般教材。
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