Proof using.
red. red. intros. simpl in *.
find_apply_hyp_hyp. intuition eauto.
do_in_map.
subst. simpl in *.
find_eapply_lem_hyp doGenericServer_packets. subst. simpl in *. intuition.
Qed.

Lemma no_append_entries_to_self_append_entries :
raft_net_invariant_append_entries no_append_entries_to_self.