Proof using.
red. unfold votesReceived_moreUpToDate. intros. simpl in *.
find_copy_apply_lem_hyp handleAppendEntriesReply_votesReceived.
find_copy_apply_lem_hyp handleAppendEntriesReply_log_term_type.
subst. repeat find_higher_order_rewrite.
destruct_update; simpl in *; eauto;
intuition; try congruence; repeat find_rewrite; eauto.
Qed.

(* Specifications: *)
Lemma votesReceived_moreUpToDate_request_vote :
refined_raft_net_invariant_request_vote votesReceived_moreUpToDate.