Let : G H be a homomorphism of groups, A a subgroup of G, and B
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Let ∫: G → H be a homomorphism of groups, A a subgroup of G, and B a subgroup of H.
(a) Ker ∫and ∫-1(B) are subgroups of G.
(b) ∫(A) is a subgroup of H.
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a Ker is the set of all elements in G that map to the identity ...View the full answer
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Related Book For
Algebra Graduate Texts In Mathematics 73
ISBN: 9780387905181
8th Edition
Authors: Thomas W. Hungerford
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