Proof using.
unfold msg_refined_raft_net_invariant_timeout, msg_refined_raft_net_invariant_timeout'.
intuition eauto.
Qed.

(* Specifications: *)
Lemma msg_refined_raft_net_invariant_append_entries'_weak :
forall net,
msg_refined_raft_net_invariant_append_entries net ->
msg_refined_raft_net_invariant_append_entries' net.