∀ {G : Type u_1} {H : Type u_2} [inst : Group G] [inst_1 : Group H] (G' : Subgroup G) (H' : Subgroup H)
  [inst_2 : G'.Normal] [inst_3 : H'.Normal] (e e_1 : G ≃* H) (e_e : e = e_1) (he : Subgroup.map (↑e) G' = H'),
  QuotientGroup.congr G' H' e he = QuotientGroup.congr G' H' e_1 ⋯