PROOF.mask_app: def of bend-osdev-acpi@0.1.2.0
Import: import bend-osdev-acpi@0.1.2.0/PROOF.bend as PROOF
Lines 1991-1997 of bend-osdev-acpi@0.1.2.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-acpi@0.1.2.0/PROOF.bend&start_line=1991&end_line=1997

import Base
import bend-osdev-bytes@0.1.1.1/bytes.bend as B

def mask_app(+a: List<&2, U32>, +b: List<&2, U32>) -> {B.append(B.mask(a), B.mask(b)) == B.mask(B.append(a, b)) : List<&2, U32>}:
  match a:
    case Nil{}:
      {==}
    case Con{h, t}:
      %mask_app(t, b) : {Con{B.byte(h), B.append(B.mask(t), B.mask(b))} == Con{B.byte(h), _} : List<&2, U32>}
      {==}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=append
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=byte
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=mask