Let G be a finite group and let N be a normal subgroup of G such that |N| = n is relatively prime to |G/N|. Let H be any subgroup of G of order n. Show that H = N.
Let G be a finite group and let N be a normal subgroup of G such that |N| = n is relatively prime to |G/N|. Let H be any subgroup of G of order n. Show that H = N.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter4: More On Groups
Section4.5: Normal Subgroups
Problem 21E: With H and K as in Exercise 18, prove that K is a normal subgroup of HK. Exercise18: If H is a...
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