Question 2. (a) Given the set T = {0, 1, 2}, together with an operation *. Suppose that the identity is 0. Provide the Cayley table if the pair (T, *) were to form a group. (b) Given a group (G, *), with e E G, and e* a = a for some a E G. Prove that e must be the identity element of the group. (c) Given the set S = {1,2,...,n}, show that Sym(S) is Abelian for n = 1, 2, and non- Abelian for n > 2, nEN.
Question 2. (a) Given the set T = {0, 1, 2}, together with an operation *. Suppose that the identity is 0. Provide the Cayley table if the pair (T, *) were to form a group. (b) Given a group (G, *), with e E G, and e* a = a for some a E G. Prove that e must be the identity element of the group. (c) Given the set S = {1,2,...,n}, show that Sym(S) is Abelian for n = 1, 2, and non- Abelian for n > 2, nEN.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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