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References to 'finite subgroup'
1. calculus of subgroup orders by Algeboy
2. cyclic group by yark
3. generator for the mutiplicative group of a field by polarbear
4. local finiteness is closed under extension, proof that by yark
5. normality of subgroups is not transitive by yark
6. structure of $(\mathbb{Z}/n\mathbb{Z})^{\times}$ as an abelian group by rm50