【答案】应助回帖

12楼: Originally posted by xylslyx at 2016-12-05 08:17:32
好久不看，概念可能不准确了。我的理解：f_{1}(x)\in F,根据g(x)和f_{1}(x)定义，g(x)\in F
聂的书写的太精炼，想学的深入点，可以参考他后面的文献1，卷3第14节

12.GIF
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13楼: Originally posted by _kdh at 2016-12-05 09:06:50
请问，为何根据f1和g的定义就能得到g∈F呢。。我理解是，由上面的只能得到f1和g有相同的根，只能保证g∈E。不知道漏了啥，得不到g∈F的结果
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14楼: Originally posted by xylslyx at 2016-12-05 09:13:12
f1定义在哪？...

14楼: Originally posted by xylslyx at 2016-12-05 09:13:12
f1定义在哪？...

16楼: Originally posted by _kdh at 2016-12-05 16:46:52
所以我抽象出原图片中的那个命题。
求救啊。哪里出现想漏了么
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17楼: Originally posted by xylslyx at 2016-12-05 17:51:41
不好意思，帮不到你了...

17楼: Originally posted by xylslyx at 2016-12-05 17:51:41
不好意思，帮不到你了...

19楼: Originally posted by _kdh at 2016-12-05 21:21:52
其他书上怎么证明这个命题。范德瓦尔登那本貌似没有。 什么书涉及这个？
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