问题


There is a single choice question about abstract algebra. Answer the question by replying A, B, C or D.
Question: Statement 1 | Every solvable group is of prime-power order. Statement 2 | Every group of prime-power order is solvable.
A. True, True
B. False, False
C. True, False
D. False, True
Answer:

答案

模型 模型答案 正确答案
金声玉亮2.0

D
D
deepseekr1

The first statement claims all solvable groups have prime-power order. However, counterexamples like the symmetric group \( S_3 \) (order 6, solvable but not a prime power) show this is false. Thus, Statement 1 is **False**.

For Statement 2, all prime-power order groups (p-groups) are solvable. This follows because p-groups have nontrivial centers, allowing induction on their order to demonstrate solvability via normal subgroups and solvable extensions. Hence, Statement 2 is **True**.

**Answer:** D. False, True
D
gpto1 D D
GPT-4o D. False, True D
llama3.1-70B-Instruct

Statement 1 is false. For example, the symmetric group $S_{3}$ is solvable but not of prime-power order. Statement 2 is true. In fact, every group of prime-power order is nilpotent, and hence solvable.
Final Answer: The final answer is D. I hope it is correct.
D
llama3.1-405B-Instruct

D
D
DeepSeek-Coder-V2 D D
Qwen2-72B-Instruct D. False, True D
baichuan4 D D
doubao D. False, True.

Not every solvable group is of prime-power order (so Statement 1 is false), but every group of prime-power order is solvable (Statement 2 is true).
D
minimax D. False, True

Statement 1 is false because not every solvable group is of prime-power order. A solvable group is one that has a normal series whose factor groups (quotient groups) are all abelian, and there are solvable groups that are not of prime power order.

Statement 2 is true because every group of prime-power order is solvable. This is a consequence of the fact that groups of prime power order have non-trivial center, and by using the class equation and induction on the order of the group, one can show that such groups have a normal series with abelian factor groups.
D
kimi D. False, True

Statement 1 is false because a solvable group is one where there exists a subnormal series with abelian factors, and it does not necessarily have to be of prime-power order.

Statement 2 is true because a group of prime-power order is indeed solvable. This is a result of the fact that a group of prime-power order is a p-group, and p-groups are solvable.
D
wenxinyiyan D D
zhipu D. False, True

Explanation:
- Statement 1: "Every solvable group is of prime-power order." This is false. A solvable group does not necessarily have to be of prime-power order. For example, the symmetric group \( S_3 \) is solvable but not of prime-power order.
- Statement 2: "Every group of prime-power order is solvable." This is true. Groups of prime-power order are known to be solvable by the structure theorem for finite abelian groups and the fact that p-groups (groups of order \( p^n \) for some prime \( p \) and integer \( n \)) are solvable.
D
gpto1 D D
deepseekv3 The correct answer is: **D. False, True**

### Explanation:
1. **Statement 1**: "Every solvable group is of prime-power order."
This is **false**. Not all solvable groups have prime-power order. For example, the symmetric group \( S_3 \) is solvable but its order is 6, which is not a prime power.

2. **Statement 2**: "Every group of prime-power order is solvable."
This is **true**. By Burnside's theorem, all groups of prime-power order (i.e., \( p \)-groups) are solvable.

Thus, Statement 1 is false, and Statement 2 is true. The correct choice is **D**.
D