Subgroup of double coset index two

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This article defines a subgroup property: a property that can be evaluated to true/false given a group and a subgroup thereof, invariant under subgroup equivalence. View a complete list of subgroup properties[SHOW MORE]

Definition

A subgroup is said to have double coset index two if its double coset index is exactly two.

Relation with other properties

Stronger properties

Weaker properties