∀ {F : Type u_1} {A : Type u_3} {B : Type u_4} [inst : NonUnitalNonAssocSemiring A] [inst_1 : Star A]
  [inst_2 : NonUnitalNonAssocSemiring B] [inst_3 : Star B] [inst_4 : FunLike F A B]
  [inst_5 : NonUnitalRingHomClass F A B] [inst_6 : NonUnitalStarRingHomClass F A B] {f : F} (hf : Function.Bijective ⇑f)
  (a : A), (StarRingEquiv.ofBijective f hf) a = f a