Let HcZ be a non-trivial subgroup of the group of integers Z. Then we must have...
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Let HcZ be a non-trivial subgroup of the group of integers Z. Then we must have that the order of H is finite the index of H is finite the index of H is infinite the order of H is less than the index of H Let HcZ be a non-trivial subgroup of the group of integers Z. Then we must have that the order of H is finite the index of H is finite the index of H is infinite the order of H is less than the index of H
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