def aria_dd18
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
6604def aria_dd18(+s: A.LcAriaSt) -> {s == A.aria.d18(A.aria.u18(s)) : A.LcAriaSt}:
6605 %aria_dd17(A.aria.e17(s)) : {s == A.aria.e17(_) : A.LcAriaSt}
6606 aria_e17(s)