PROOF.off.ldrop_app_add: def of bend-osdev-bytes@0.1.1.0
Import: import bend-osdev-bytes@0.1.1.0/PROOF.bend as PROOF
Lines 989-994 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=989&end_line=994

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

def off.ldrop_app_add(a: List<&2, U32>, +n: Nat, +b: List<&2, U32>) -> {B.drop(Nat.add(B.len(a), n), B.append(a, b)) == B.drop(n, b) : List<&2, U32>}:
  match a:
    case Nil{}:
      {==}
    case Con{h, t}:
      off.ldrop_app_add(t, n, b)

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=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=append
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=drop
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=len