Proof using.
intros.
unfold handleRequestVoteReply, advanceCurrentTerm in *.
repeat break_match; try find_inversion; subst; simpl in *; intuition.
Qed.
Ltac start :=
red; unfold leaders_have_leaderLogs_strong; intros;
subst; simpl in *; find_higher_order_rewrite;
update_destruct; subst; rewrite_update; eauto; simpl in *.

(* Specifications: *)
Lemma handleAppendEntries_type :
forall h st t n pli plt es ci st' ps,
handleAppendEntries h st t n pli plt es ci = (st', ps) ->
(type st' = type st /\ currentTerm st' = currentTerm st /\ log st' = log st) \/
type st' = Follower.