Question: 2 Let G be a group and let D a a a G a Prove that D is a subgroup of G x G b

2 Let G be a group and let D a a

a G a Prove that D is a subgroup of G x

2 Let G be a group and let D a a a G a Prove that D is a subgroup of G x G b Prove that D is normal in G x G if and only if G is abeli

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