Proof using.
unfold update_elections_data_timeout.
intros.
repeat break_match; auto.
Qed.

(* Specifications: *)
Lemma update_elections_data_appendEntries_leaderLogs :
forall h st t src pli plt es ci,
leaderLogs (update_elections_data_appendEntries h st t src pli plt es ci) = leaderLogs (fst st).