2017年10月24日

Summation Order
摘要： This note is for my students (first year) who got confused in class when I showed the proof of theorem 1.4.3 in 林亚南's 高等代数 to them. It seems some deta 阅读全文
posted @ 2017-10-24 01:39 J Wang 阅读(123) 评论(0) 推荐(0) 编辑

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独立之精神，自由之思想