Proof using.
red. unfold ghost_log_correct. intros. simpl in *.
match goal with
| H : nwState ?net ?h = (?gd, ?d) |- _ =>
replace gd with (fst (nwState net h)) in * by (rewrite H; reflexivity);
replace d with (snd (nwState net h)) in * by (rewrite H; reflexivity);
clear H
end.
repeat find_reverse_rewrite. eauto.
Qed.

(* Specifications: *)
Lemma ghost_log_correct_client_request :
msg_refined_raft_net_invariant_client_request ghost_log_correct.