LAWS.shift_view: law of lawful-bytes@0.1.1.0
Import: import lawful-bytes@0.1.1.0/LAWS.bend as LAWS
Lines 257-265 of lawful-bytes@0.1.1.0/LAWS.bend: https://jend.leeeet.dev/read.txt?path=lawful-bytes@0.1.1.0/LAWS.bend&start_line=257&end_line=265

import Base
import lawful-bytes@0.1.1.0/defs.bend as D
import lawful-bytes@0.1.1.0/bytes.bend as B

# shift drops the first k bytes and moves the rest to the start (for reusing a
# buffer when reading a stream in pieces).
law shift_view:
  for b: D.Bytes
  for d: Nat
  for k: U32
  for h: {D.ok(b, d) == True{} : Bool}
  for hk: {Nat.is_le(U32.to_nat(k), D.size(b)) == True{} : Bool}
  {D.view(B.shift(b, k)) == List.drop(&2, U32, D.view(b), U32.to_nat(k)) : List<&2, U32>}

Uses (14):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.drop
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_le
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/PROOF.bend&name=shift_view.go
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/bytes.bend&name=shift
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/defs.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/defs.bend&name=ok
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/defs.bend&name=size
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/defs.bend&name=view
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/proof_core.bend&name=bmirror