Problem with Ideal：
Let I and J be the ideals in ring R.
Prove that I ∪ J is an ideal in ring R if and only if I ⊆ J or J ⊂ I
( I ∪ J is an ideal in ring R < = > I ⊆ J or J ⊂ I )
Ideal (Ring Theory)
2015-03-23 10:57 pm
回答 (1)
2015-03-24 9:26 am
✔ 最佳答案
This problem is not hard, you will need to know some logic and tricks, there you go圖片參考：https://s.yimg.com/lo/api/res/1.2/FpILLvtCKUsxNTxHVZXEdg--/YXBwaWQ9dHdhbnN3ZXJzO3E9ODU-/http://i187.photobucket.com/albums/x22/cshung/7015032300046_zpsrwtngphy.png
收錄日期: 2021-05-01 01:16:04
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