def aria_dd2
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
6476def aria_dd2(+s: A.LcAriaSt) -> {s == A.aria.d2(A.aria.u2(s)) : A.LcAriaSt}:
6477 %aria_dd1(A.aria.e1(s)) : {s == A.aria.e1(_) : A.LcAriaSt}
6478 aria_e1(s)