def aria_d18
import bend-osdev-aria@0.1.0.0/PROOF.bend as PROOFimport Base
import bend-osdev-aria@0.1.0.0/aria.bend as A
6600def aria_d18(+s: A.LcAriaSt) -> {s == A.aria.u18(A.aria.d18(s)) : A.LcAriaSt}:
6601 %aria_e17(A.aria.d17(s)) : {s == A.aria.u17(_) : A.LcAriaSt}
6602 aria_d17(s)