Proof using.
red. unfold client_cache_correct in *. simpl in *. intros. subst.
find_higher_order_rewrite.
destruct_update; simpl in *; eauto.
use_same_client_cache handleRequestVoteReply_clientCache.
erewrite handleRequestVoteReply_log; eauto.
erewrite handleRequestVoteReply_same_lastApplied; eauto.
Qed.

Lemma client_cache_correct_client_request :
raft_net_invariant_client_request' client_cache_correct.