def rx_zl
import bend-osdev-gf@0.1.1.0/PROOF.bend as PROOFimport Base
import bend-osdev-gf@0.1.1.0/gf.bend as G
338def rx_zl(+a: G.Gf8Bits) -> {G.Gf8Bits.xor(G.Gf8Bits.zero(), a) == a : G.Gf8Bits}:
339 match a:
340 case G.Gf8Bits{a0, a1, a2, a3, a4, a5, a6, a7}:
341 {==}