PROOFTables.tb.la: def of bend-osdev-acpi@0.1.2.0
Import: import bend-osdev-acpi@0.1.2.0/PROOF_tables.bend as PROOFTables
Lines 75-76 of bend-osdev-acpi@0.1.2.0/PROOF_tables.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-acpi@0.1.2.0/PROOF_tables.bend&start_line=75&end_line=76

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

def tb.la(+a: B.Octets, +b: B.Octets) -> {Nat.add(B.Octets.len(a), B.Octets.len(b)) == B.Octets.len(B.Octets.append(a, b)) : Nat}:
  Equal.sym(Nat, B.Octets.len(B.Octets.append(a, b)), Nat.add(B.Octets.len(a), B.Octets.len(b)), BL.octets_len_append(a, b))

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.sym
  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@0.1.1.1/LAWS.bend&name=octets_len_append
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=Octets
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=Octets.append
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=Octets.len