Modular subnormal subgroup

Definition
A subgroup of a group is termed a modular subnormal subgroup if it is both a modular subgroup and a subnormal subgroup.

Stronger properties

 * Weaker than::Normal subgroup
 * Weaker than::Modular 2-subnormal subgroup
 * Weaker than::Permutable subnormal subgroup

Weaker properties

 * Stronger than::Modular subgroup
 * Stronger than::Subnormal subgroup