Formula _ 11 , where the intersection runs through all normal subgroups of finite index ) . Formula 11 , where the intersection of all normal subgroups runs from finite index .
Formula _ 11, di mana persimpangan berjalan melalui semua subkumpulan normal indeks terhingga). Formula 11, di mana persimpangan semua subkumpulan normal berjalan dari indeks terhingga.