def aria_d4
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
6488def aria_d4(+s: A.LcAriaSt) -> {s == A.aria.u4(A.aria.d4(s)) : A.LcAriaSt}:
6489 %aria_e3(A.aria.d3(s)) : {s == A.aria.u3(_) : A.LcAriaSt}
6490 aria_d3(s)