Let G be a group and h be some element of G. Let H be the set of elements in G that commute with h. That is H = {9 € G:g
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Let G be a group and h be some element of G. Let H be the set of elements in G that commute with h. That is H = {9 € G:g
Let G be a group and h be some element of G. Let H be the set of elements in G that commute with h. That is H = {9 € G:gh = hg}. Prove that H is a subgroup of G.
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