Maybe.maybe_map_id: law of bend-mathlib@0.8.1.0
Import: import bend-mathlib@0.8.1.0/maybe.bend as Maybe
Lines 73-77 of bend-mathlib@0.8.1.0/maybe.bend: https://jend.leeeet.dev/read.txt?path=bend-mathlib@0.8.1.0/maybe.bend&start_line=73&end_line=77

import Base

# Mapping the identity gives the value back.
law maybe_map_id:
  for ~A: Data
  for m: Maybe<&2, A>
  {Maybe.map(&2, A, A, x => x, m) == m : Maybe<&2, A>}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe.map