law toggle_other

minebender-game@1.0.0.0 · proof_grid.bend:325

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

325# Toggling p leaves every other cell as it was.
326law toggle_other:
327  for +flags: List<&2, T.Pos>
328  for +p: T.Pos
329  for +q: T.Pos
330  for +d: {B.same(p, q) == False{} : Bool}
331  {B.contains(G.toggle(flags, p), q) == B.contains(flags, q) : Bool}