∀ {C : Type u_1} [inst : CategoryTheory.Category.{v_1, u_1} C] {D : Type u_2}
  [inst_1 : CategoryTheory.Category.{v_2, u_2} D] [inst_2 : CategoryTheory.Preregular C] (A : Type u_3)
  [inst_3 : CategoryTheory.Category.{v_3, u_3} A] (e : C ≌ D)
  (F : CategoryTheory.Sheaf (CategoryTheory.regularTopology C) A) (X : Dᵒᵖ),
  ((CategoryTheory.Equivalence.sheafCongrPreregular A e).functor.obj F).val.obj X =
    F.val.obj (Opposite.op (e.inverse.obj (Opposite.unop X)))