law disp_rows_get

minebender-game@1.0.0.0 · proof_display.bend:43

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

43law disp_rows_get:
44  for +w: Nat
45  for +h: Nat
46  for +layout: T.Grid(Bool)
47  for +shown: T.Grid(Bool)
48  for +flags: List<&2, T.Pos>
49  for +st: T.Status
50  for +ys: List<&2, Nat>
51  for +i: Nat
52  for +y: Nat
53  for e: {List.get(&2, Nat, ys, i) == Some{y} : Maybe<&2, Nat>}
54  {List.get(&2, List<&2, T.Tile>, G.disp_rows(w, h, layout, shown, flags, st, ys), i)
55    == Some{G.disp_row(w, h, layout, shown, flags, st, y, List.range(w))} : Maybe<&2, List<&2, T.Tile>>}