Lemma handleClientRequest_rvr : forall h net ps client id c out d l p t v, handleClientRequest h (snd (nwState net h)) client id c = (out, d, l) -> (forall p' : packet, In p' ps -> In p' (nwPackets net) \/ In p' (send_packets h l)) -> pBody p = RequestVoteReply t v -> In p ps -> In p (nwPackets net).