∀ {α : Type u} {β : Type v} [inst : BEq α] [inst_1 : Hashable α] (stage₁ : Bool) (map₁ : Std.HashMap α β)
  (map₂ : Lean.PHashMap α β) (stage₁_1 : Bool) (map₁_1 : Std.HashMap α β) (map₂_1 : Lean.PHashMap α β),
  ({ stage₁ := stage₁, map₁ := map₁, map₂ := map₂ } = { stage₁ := stage₁_1, map₁ := map₁_1, map₂ := map₂_1 }) =
    (stage₁ = stage₁_1 ∧ map₁ = map₁_1 ∧ map₂ = map₂_1)