ProofFastAppend.tg4: law of lawful-bytes@0.1.1.0
Import: import lawful-bytes@0.1.1.0/proof_fast_append.bend as ProofFastAppend
Lines 129-141 of lawful-bytes@0.1.1.0/proof_fast_append.bend: https://jend.leeeet.dev/read.txt?path=lawful-bytes@0.1.1.0/proof_fast_append.bend&start_line=129&end_line=141

import Base

law tg4:
  for +ys: List<&2, U32>
  for +m: Nat
  for +b0: U32
  for +b1: U32
  for +b2: U32
  for +b3: U32
  for +hm: {Nat.is_le(m, 4n) == True{} : Bool}
  for g0: {Nat.is_lt(0n, m) == True{} : Bool} -> {List.get(&2, U32, ys, 0n) == Some{b0} : Maybe<&2, U32>}
  for g1: {Nat.is_lt(1n, m) == True{} : Bool} -> {List.get(&2, U32, ys, 1n) == Some{b1} : Maybe<&2, U32>}
  for g2: {Nat.is_lt(2n, m) == True{} : Bool} -> {List.get(&2, U32, ys, 2n) == Some{b2} : Maybe<&2, U32>}
  for g3: {Nat.is_lt(3n, m) == True{} : Bool} -> {List.get(&2, U32, ys, 3n) == Some{b3} : Maybe<&2, U32>}
  {List.take(&2, U32, ys, m) == List.take(&2, U32, [b0, b1, b2, b3], m) : List<&2, U32>}

Uses (15):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.trans
  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=List.get
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.take
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  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=Nat.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/proof_fast_append.bend&name=tcons
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/proof_fast_append.bend&name=tg3
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/proof_seq.bend&name=take_zero
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/proof_shift.bend&name=get_drop