Question: How do I show this? 4.4. Let N be a normal subgroup of G. Let H be the set of all elements I: of G

How do I show this?

How do I show this? 4.4. Let N be a normal subgroup

4.4. Let N be a normal subgroup of G. Let H be the set of all elements I: of G such that kn = nh for all n E N. Show that H is a normal subgroup of G

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