Suppose H is a subgroup of a group G. Show, using the definition of subgroup, that H must contain the identity e of G. A

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answerhappygod
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Suppose H is a subgroup of a group G. Show, using the definition of subgroup, that H must contain the identity e of G. A

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Suppose H is a subgroup of a group G. Show, using the definition
of subgroup, that H must contain the identity e of G. Argue further
that in this case, e must also be the identity of H, that
is,eG=eH.
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