PROOF.p_drop_drop: def of bend-osdev-bytes@0.1.1.0
Import: import bend-osdev-bytes@0.1.1.0/PROOF.bend as PROOF
Lines 1139-1142 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=1139&end_line=1142

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

def p_drop_drop(+j: Nat, +i: Nat, +o: B.Octets) -> {B.Octets.drop(i, B.Octets.drop(j, o)) == B.Octets.drop(Nat.add(j, i), o) : B.Octets}:
  match o:
    case B.Octets{+ws}:
      Equal.cong(List<&2, B.OctByte>, B.Octets, l => B.Octets{l}, B.w8s.drop(i, B.w8s.drop(j, ws)), B.w8s.drop(Nat.add(j, i), ws), off.drop_drop(j, i, ws))

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.cong
  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.drop_drop
  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=Octets
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets.drop
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=w8s.drop