Inhabited instance for any Empty instance.

algebra/cmra.v

@@ -504,8 +504,6 @@ Section ucmra.
   Context {A : ucmraT}.
   Implicit Types x y z : A.
 
-  Global Instance ucmra_unit_inhabited : Inhabited A := populate ∅.
-
   Lemma ucmra_unit_validN n : ✓{n} (∅:A).
   Proof. apply cmra_valid_validN, ucmra_unit_valid. Qed.
   Lemma ucmra_unit_leastN n x : ∅ ≼{n} x.

prelude/base.v

@@ -567,6 +567,8 @@ intersection [(∩)], and difference [(∖)], the singleton [{[_]}], the subset
 Class Empty A := empty: A.
 Notation "∅" := empty : C_scope.
 
+Instance empty_inhabited `(Empty A) : Inhabited A := populate ∅.
+
 Class Top A := top : A.
 Notation "⊤" := top : C_scope.