[代數] quotient ring
昨天上數論的時候 大概把代數都還給老師了
所以來請教大家
Let R=Z[sqrt(-26)]
show that I=(3,1+sqrt(-26)) is a prime ideal.
老師提到的提示是用 R/I 是個integral domain下手.
可是似乎會遇到兩次除法(就是把R也換成quotient ring的寫法)
然後我就掛了
懇請大家幫忙
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