Show that: (i) If N is a normal subgroup of an abelian group G, then G/N is also abelian. H is a group homomorphism and G is abelian, then im o is (ii) If o: G abelian.

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 22E
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Show that:
(i) If N is a normal subgroup of an abelian group G, then G/N is also abelian.
H is a group homomorphism and G is abelian, then im o is
(ii) If o: G
abelian.
Transcribed Image Text:Show that: (i) If N is a normal subgroup of an abelian group G, then G/N is also abelian. H is a group homomorphism and G is abelian, then im o is (ii) If o: G abelian.
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