Prove that every finite Abelian group can be expressed as the (external) direct product of cyclic groups of orders n₁, ₂, ..., n where n₁+1 divides n, for i for i = 1, 2, ..., t - 1. (This exercise is re- ferred to in this chapter.)

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter4: More On Groups
Section4.7: Direct Sums (optional)
Problem 23E: Prove that if r and s are relatively prime positive integers, then any cyclic group of order rs is...
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11 | Fundamental Theorem of Finite Abelian Groups 221
11. Prove that every finite Abelian group can be expressed as the
(external) direct product of cyclic groups of orders n₁, n₂,..., no
where n+1
divides n, for i = 1, 2, . . . , t —- 1. (This exercise is re-
ferred to in this chapter.)
Transcribed Image Text:11 | Fundamental Theorem of Finite Abelian Groups 221 11. Prove that every finite Abelian group can be expressed as the (external) direct product of cyclic groups of orders n₁, n₂,..., no where n+1 divides n, for i = 1, 2, . . . , t —- 1. (This exercise is re- ferred to in this chapter.)
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