law chord_mono

minebender-game@1.0.0.0 · proof_laws.bend:409

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

409law chord_mono:
410  for +ts: List<&2, T.Pos>
411  for +g: G.Game
412  for +q: T.Pos
413  for s: {B.at(Bool, False{}, shown_of(g), q) == True{} : Bool}
414  {B.at(Bool, False{}, shown_of(G.chord_play(ts, g)), q) == True{} : Bool}