dataset_name: abstract_algebra description: The following are multiple choice questions (with answers) about abstract algebra. fewshot_config: sampler: first_n samples: - question: 'Statement 1 | Every element of a group generates a cyclic subgroup of the group. Statement 2 | The symmetric group S_10 has 10 elements. (A) True, True (B) False, False (C) True, False (D) False, True' target: Let's think step by step. A cyclic group is a group that is generated by a single element. Hence a subgroup generated by a single element of a group is cyclic and Statement 1 is True. The answer is (C). - question: 'The symmetric group $S_n$ has $ actorial{n}$ elements, hence it is not true that $S_{10}$ has 10 elements. Find the characteristic of the ring 2Z. (A) 0 (B) 3 (C) 12 (D) 30' target: Let's think step by step. A characteristic of a ring is R is $n$ if the statement $ka = 0$ for all $a\in 2Z$ implies that $k$ is a multiple of $n$. Assume that $ka = 0$ for all $a\in 2Z$ for some $k$. In particular $2k = 0$. Hence $k=0$ and $n=0$. The answer is (A). - question: 'Statement 1| Every function from a finite set onto itself must be one to one. Statement 2 | Every subgroup of an abelian group is abelian. (A) True, True (B) False, False (C) True, False (D) False, True' target: "Let's think step by step. Statement 1 is true. Let $S$ be a finite set.\ \ If $f:S \nightarrow S$ is a onto function, then $|S| = |f(S)|$. If $f$ was\ \ not one to one, then for finite domain $S$ the image would have less than\ \ $S$ elements, a contradiction.\nStatement 2 is true. Let $G$ be an abelian\ \ group and $H$ be a subgroup of $G$. We need to show that $H$ is abelian. Let\ \ $a,b \\in H$. Then $a,b \\in G$ and $ab=ba$. Since $G$ is abelian, $ab=ba$.\ \ Since $H$ is a subgroup of $G$, $ab \\in H$. Therefore, $ab=ba$ and $H$ is\ \ abelian. The answer is (A)." - question: 'Statement 1 | If aH is an element of a factor group, then |aH| divides |a|. Statement 2 | If H and K are subgroups of G then HK is a subgroup of G. (A) True, True (B) False, False (C) True, False (D) False, True' target: Let's think step by step. Statement 2 is false. Let $H$ be a subgroup of $S_3$ generated by the cycle $(1,2)$ and $K$ be a subgroup of $S_3$ generated by the cycle $(1,3)$. Both $H$ and $K$ have two elements, the generators and the identity. However $HK$ contains cycles (1,2), (1,3) and (2,3,1), but the inverse of (2,3,1) is (2,1,3) and it does not belong to HK, hence HK is not a subgroup. The answer is (B). - question: 'Find all c in Z_3 such that Z_3[x]/(x^2 + c) is a field. (A) 0 (B) 1 (C) 2 (D) 3' target: 'Let''s think step by step. Z_3[x]/(x^2 + c) is a field if and only if x^2 + c does not have roots in Z_3. That is x^2 + c != 0 for every x in Z_3. If c = 0, then x^2 + c = x^2 has root 0. If c = 1 then x^2 + c = x^2 + 1 = 0 + 1 for x = 0, 1 + 1 = 2 for x = 1 and 1 + 1 = 2 for x = 2, hence x^2 + 1 does not have any roots. For c = 2 the polynomial x^2 + 2 has two roots at x = 1 and x = 2. Hence Z_3[x]/(x^2 + c) is a field if and only if c = 1. The answer is (B).' tag: mmlu_flan_cot_fewshot_stem include: _mmlu_flan_cot_fewshot_template_yaml task: mmlu_flan_cot_fewshot_abstract_algebra