PROOF.w8s_take_drop: def of bend-osdev-bytes@0.1.1.0
Import: import bend-osdev-bytes@0.1.1.0/PROOF.bend as PROOF
Lines 190-198 of bend-osdev-bytes@0.1.1.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-bytes@0.1.1.0/PROOF.bend&start_line=190&end_line=198

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

def w8s_take_drop(n: Nat, ws: List<&2, B.OctByte>) -> {List.append(&2, B.OctByte, B.w8s.take(n, ws), B.w8s.drop(n, ws)) == ws : List<&2, B.OctByte>}:
  match n ws:
    case 0n _:
      {==}
    case 1n+p Nil{}:
      {==}
    case 1n+p Con{h, t}:
      %w8s_take_drop(p, t) : {Con{h, List.append(&2, B.OctByte, B.w8s.take(p, t), B.w8s.drop(p, t))} == Con{h, _} : List<&2, B.OctByte>}
      {==}

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.append
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=OctByte
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=w8s.drop
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=w8s.take