def F_app

bend-osdev-bytes@0.1.1.0 · PROOF.bend:299

import Base
import bend-osdev-bytes@0.1.1.0/bytes.bend as B

299def F_app(+xs: List<&2, B.OctByte>, +ys: List<&2, B.OctByte>) -> {List.append(&2, B.OctByte, xs, ys) == B.w8s.append.fast(xs, ys) : List<&2, B.OctByte>}:
300  Equal.sym(List<&2, B.OctByte>, B.w8s.append.fast(xs, ys), List.append(&2, B.OctByte, xs, ys), r8_rr(xs, Nil{}, ys))