bn:03278883n
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In mathematics, in the field of group theory, a subgroup H {\displaystyle H} of a group G {\displaystyle G} is said to be weakly normal if whenever H g ≤ N G {\displaystyle H^{g}\leq N_{G}}, we have g ∈ N G {\displaystyle g\in N_{G}}. Wikipedia
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