Normal Subgroup
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A normal subgroup is a subgroup that is fixed under conjugation by any element.
Normal subgroup is a college-level concept that would be first encountered in an abstract algebra course covering group theory.
Prerequisites
| Group: | A mathematical group is a set of elements and a binary operation that together satisfy the four fundamental properties of closure, associativity, the identity property, and the inverse property. |
| Subgroup: | A subgroup is a subset of a mathematical group that is also a group. |