Strongly normal subgroup
From Groupprops
There isn't anything called a strongly normal subgroup (at least, not yet). You might be looking for:
- Normal subgroup: Nothing strong about it
- Characteristic subgroup: A stronger version of normality
- Transitively normal subgroup: Another stronger version of normality
Or, you might want to get a glimpse of Category:Variations of normality or look at variations stronger than normality
