BendMlBpeTokenizer.vocab_bound: law of bend-ml-bpe-tokenizer@0.1.3.0
Import: import bend-ml-bpe-tokenizer@0.1.3.0/main.bend as BendMlBpeTokenizer
Lines 525-531 of bend-ml-bpe-tokenizer@0.1.3.0/main.bend: https://jend.leeeet.dev/read.txt?path=bend-ml-bpe-tokenizer@0.1.3.0/main.bend&start_line=525&end_line=531

import Base

# LAW 2 (vocabulary): every token emitted by encode is a raw byte or was
# created by one of the table's rules; an unknown id never appears.
law vocab_bound:
  for +table: List<&2, Rule>
  for +bs: List<&2, Nat>
  for +w: {True{} == wf(table) : Bool}
  {True{} == knl(List.reverse(&2, Rule, table), encode(table, lift(bs))) : Bool}

Uses (11):
  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.reverse
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bend-ml-bpe-tokenizer@0.1.3.0/main.bend&name=Rule
  https://jend.leeeet.dev/definition.txt?path=bend-ml-bpe-tokenizer@0.1.3.0/main.bend&name=enc_known
  https://jend.leeeet.dev/definition.txt?path=bend-ml-bpe-tokenizer@0.1.3.0/main.bend&name=encode
  https://jend.leeeet.dev/definition.txt?path=bend-ml-bpe-tokenizer@0.1.3.0/main.bend&name=knl
  https://jend.leeeet.dev/definition.txt?path=bend-ml-bpe-tokenizer@0.1.3.0/main.bend&name=lift
  https://jend.leeeet.dev/definition.txt?path=bend-ml-bpe-tokenizer@0.1.3.0/main.bend&name=lift_known
  https://jend.leeeet.dev/definition.txt?path=bend-ml-bpe-tokenizer@0.1.3.0/main.bend&name=wf