Lemma while_loop_post_sublist_app: forall key0 V0 n out_len, 0 <= (n * 32)%Z <= out_len -> Zlength V0 = 32 -> sublist 0 (n * 32) (snd (HMAC_DRBG_generate_helper_Z HMAC256 key0 V0 (n * 32))) ++ sublist 0 (Z.min 32 (out_len - n * 32)) (fst (HMAC_DRBG_generate_helper_Z HMAC256 key0 V0 (n * 32 + Z.min 32 (out_len - n * 32)))) = sublist 0 (n * 32 + Z.min 32 (out_len - n * 32)) (snd (HMAC_DRBG_generate_helper_Z HMAC256 key0 V0 (n * 32)) ++ fst (HMAC_DRBG_generate_helper_Z HMAC256 key0 V0 (n * 32 + Z.min 32 (out_len - n * 32)))).