Proof using.
unfold refined_raft_net_invariant_init, cronies_correct, step_async_init.
unfold votes_received_cronies, cronies_votes, votes_nw, votes_received_leaders.
simpl. intuition. discriminate.
Qed.

Theorem cronies_correct_invariant :
forall (net : network),
refined_raft_intermediate_reachable net ->
cronies_correct net.