OLet a and b be elements of a group G. Prove that G is abelian if and only if (ab)- = a¯\b-!.
OLet a and b be elements of a group G. Prove that G is abelian if and only if (ab)- = a¯\b-!.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter4: More On Groups
Section4.6: Quotient Groups
Problem 26E:
26. Prove or disprove that if a group has an abelian quotient group , then must be abelian.
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