→ Desperato : 看不懂with zero ideal is prime 08/29 22:26
→ arthurduh1 : zero ideal is prime iff there is no non-zero 08/29 22:26
→ arthurduh1 : zero divisor 08/29 22:27
→ Desperato : 整數Z不行嗎 08/29 22:27
→ arthurduh1 : 可以 整數Z就是例子 所有 integral domain 都是 08/29 22:29
→ mack : 懂 感謝 08/29 22:36