fact: Definition grp_iso_quotient_normal (G : Group) (H : Subgroup G) {k k' : IsNormalSubgroup H} : QuotientGroup' G H k ≅ QuotientGroup' G H k'.
imports: Basics Types Truncations.Core Algebra.Congruence Algebra.Groups.Group Algebra.Groups.Subgroup Algebra.Groups.Image Algebra.Groups.Kernel Colimits.Quotient HSet Spaces.Finite.Finite WildCat Modalities.Modality