Change formatting

iris/bi/big_op.v

@@ -1464,8 +1464,10 @@ Qed.
 
 Lemma big_sepM_impl_strong `{Countable K} {A B} Φ (Ψ : K → B → PROP) m1 (m2 : gmap K B) :
   ([∗ map] k↦x ∈ m1, Φ k x) -∗
-  □ (∀ (k : K) (y : B), ⌜m2 !! k = Some y⌝ →
-      ((∃ (x : A), ⌜m1 !! k = Some x⌝ ∧ Φ k x) ∨ ⌜m1 !! k = None⌝) -∗ Ψ k y) -∗
+  □ (∀ (k : K) (y : B),
+    ⌜m2 !! k = Some y⌝ →
+    ((∃ (x : A), ⌜m1 !! k = Some x⌝ ∧ Φ k x) ∨ ⌜m1 !! k = None⌝) -∗
+    Ψ k y) -∗
   ([∗ map] k↦y ∈ m2, Ψ k y) ∗
   ([∗ map] k↦x ∈ (filter (λ '(k, _), m2 !! k = None) m1), Φ k x).
 Proof.