Instance Inhabitant_share : Inhabitant share := Share.bot. (* TODO: remove this, it's already in sublist.v *)
Instance Inhabitant_mpred : Inhabitant mpred := @FF mpred Nveric. (* TODO: remove this, it's already in sublist.v *)

Lemma mapsto_value_cohere: forall sh1 sh2 t p v1 v2, readable_share sh1 ->
mapsto sh1 t p v1 * mapsto sh2 t p v2 |-- mapsto sh1 t p v1 * mapsto sh2 t p v1.