Let H be a subgroup of a group G and S the set of all left cosets of H in G. Show that there is a homomorphism 0: G →A (S) and the kernel of 0 is the largest normal subgroup ofG which is contained in H.
Let H be a subgroup of a group G and S the set of all left cosets of H in G. Show that there is a homomorphism 0: G →A (S) and the kernel of 0 is the largest normal subgroup ofG which is contained in H.
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 13E: Let H be a subgroup of the group G. Prove that if two right cosets Ha and Hb are not disjoint, then...
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