ProofGrid.know_rows_get: law of minebender-game@1.0.0.0
Import: import minebender-game@1.0.0.0/proof_grid.bend as ProofGrid
Lines 60-70 of minebender-game@1.0.0.0/proof_grid.bend: https://jend.leeeet.dev/read.txt?path=minebender-game@1.0.0.0/proof_grid.bend&start_line=60&end_line=70

import Base
import minebender-game@1.0.0.0/types.bend as T
import minebender-game@1.0.0.0/game.bend as G

law know_rows_get:
  for +w: Nat
  for +h: Nat
  for +layout: T.Grid(Bool)
  for +shown: T.Grid(Bool)
  for +ys: List<&2, Nat>
  for +i: Nat
  for +y: Nat
  for e: {List.get(&2, Nat, ys, i) == Some{y} : Maybe<&2, Nat>}
  {List.get(&2, List<&2, T.Seen>, G.know_rows(w, h, layout, shown, ys), i)
    == Some{G.know_row(w, h, layout, shown, y, List.range(w))} : Maybe<&2, List<&2, T.Seen>>}

Uses (13):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Empty.absurd
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  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.range
  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=minebender-game@1.0.0.0/game.bend&name=know_row
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/game.bend&name=know_rows
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/proof_grid.bend&name=know_row_get.none
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/proof_grid.bend&name=know_row_get.some
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/types.bend&name=Grid
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/types.bend&name=Seen