Upper join of characteristic subgroups
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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]
Note that need not be a characteristic subgroup of because characteristicity is not upper join-closed.
In terms of the upper join-closure operator
This property is obtained by applying the upper join-closure operator to the property: characteristic subgroup
View other properties obtained by applying the upper join-closure operator