ProofGrid.know_hidden.go: def of minebender-game@1.0.0.0
Import: import minebender-game@1.0.0.0/proof_grid.bend as ProofGrid
Lines 133-154 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=133&end_line=154

import Base
import minebender-game@1.0.0.0/types.bend as T
import minebender-game@1.0.0.0/board.bend as B
import minebender-game@1.0.0.0/game.bend as G
import minebender-game@1.0.0.0/LAWS.bend as L

def know_hidden.go(+w: Nat, +h: Nat, +layout: T.Grid(Bool), +shown: T.Grid(Bool),
  +x: Nat, +y: Nat, +b: Bool, +e: {B.on_board(w, h, T.Pos{x, y}) == b : Bool}) ->
  {Bool.and(B.on_board(w, h, T.Pos{x, y}),
     L.is_hidden(L.at(T.Seen, T.Hidden{}, G.know_rows(w, h, layout, shown, List.range(h)), T.Pos{x, y})))
   == Bool.and(B.on_board(w, h, T.Pos{x, y}), Bool.not(B.at(Bool, False{}, shown, T.Pos{x, y})))
   : Bool}:
  match b:
    case False{}:
      %Equal.sym(Bool, B.on_board(w, h, T.Pos{x, y}), False{}, e) :
        {Bool.and(_, L.is_hidden(L.at(T.Seen, T.Hidden{}, G.know_rows(w, h, layout, shown, List.range(h)), T.Pos{x, y})))
          == Bool.and(_, Bool.not(B.at(Bool, False{}, shown, T.Pos{x, y}))) : Bool}
      {==}
    case True{}:
      +rows = G.know_rows(w, h, layout, shown, List.range(h))
      +p = {T.Pos{x, y} : T.Pos}
      %Equal.sym(Bool, B.on_board(w, h, p), True{}, e) :
        {Bool.and(_, L.is_hidden(L.at(T.Seen, T.Hidden{}, rows, p)))
          == Bool.and(_, Bool.not(B.at(Bool, False{}, shown, p))) : Bool}
      %Equal.sym(T.Seen, L.at(T.Seen, T.Hidden{}, rows, p), G.seen_at(w, h, layout, shown, p),
        know_at(w, h, layout, shown, x, y, e)) :
        {L.is_hidden(_) == Bool.not(B.at(Bool, False{}, shown, p)) : Bool}
      hidden_pick(B.at(Bool, False{}, shown, p), B.mine(layout, p), w, h, layout, p)

Uses (18):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.not
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.sym
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.range
  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/LAWS.bend&name=at
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/LAWS.bend&name=is_hidden
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/board.bend&name=at
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/board.bend&name=mine
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/board.bend&name=on_board
  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/game.bend&name=seen_at
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/proof_grid.bend&name=hidden_pick
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/proof_grid.bend&name=know_at
  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=Pos
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/types.bend&name=Seen