Exercise 7.15. Let G be a finite group, g € G, and N≤ G. Prove that the order of gN in G/N must divide the order of g in G.

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter4: More On Groups
Section4.4: Cosets Of A Subgroup
Problem 18E: Let G be a group of finite order n. Prove that an=e for all a in G.
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Please avoid Sylow's theorem. Thanks.

Exercise 7.15. Let G be a finite group, g € G, and N≤ G. Prove that the order of gN in G/N
must divide the order of g in G.
Transcribed Image Text:Exercise 7.15. Let G be a finite group, g € G, and N≤ G. Prove that the order of gN in G/N must divide the order of g in G.
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