Proof using.
intros. unfold term_was_created in *.
break_exists_exists. eauto.
Qed.
Ltac in_aer :=
repeat find_rewrite; eapply in_aer; eauto; repeat find_rewrite; reflexivity.

(* Specifications: *)
Lemma in_any_log_term_was_created_append_entries :
refined_raft_net_invariant_append_entries in_any_log_term_was_created.