∀ {ι : Type u_1} {K : Type u_2} {V : Type u_3} [inst : DivisionRing K] [inst_1 : AddCommGroup V] [inst_2 : Module K V]
  {f : ι → Projectivization K V}, Projectivization.Independent f ↔ iSupIndep fun i => (f i).submodule