PROOF.off.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 885-892 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=885&end_line=892

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

def off.take_drop(+i: Nat, +j: Nat, ws: List<&2, B.OctByte>) -> {B.w8s.take(i, B.w8s.drop(j, ws)) == B.w8s.drop(j, B.w8s.take(Nat.add(j, i), ws)) : List<&2, B.OctByte>}:
  match j ws:
    case 0n _:
      {==}
    case 1n+q Nil{}:
      off.take_nil(i)
    case 1n+q Con{x, t}:
      off.take_drop(i, q, t)

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/PROOF.bend&name=off.take_nil
  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