Proof using.
unfold raft_net_invariant_init, prevLog_leader_sublog.
simpl. intuition.
Qed.

(* Specifications: *)
Lemma handleClientRequest_log_In :
forall h st client id c out st' ps e,
handleClientRequest h st client id c = (out, st', ps) ->
In e (log st) -> In e (log st').