law at_set_on
minebender-game@1.0.0.0 · proof_flood.bend:302
import minebender-game@1.0.0.0/proof_flood.bend as ProofFlood
import Base
import minebender-game@1.0.0.0/types.bend as T
import minebender-game@1.0.0.0/board.bend as B
302law at_set_on:
303 for +w: Nat
304 for +h: Nat
305 for +shown: T.Grid(Bool)
306 for +c: T.Pos
307 for +sh: {B.shaped(Bool, w, h, shown) == True{} : Bool}
308 for on: {B.on_board(w, h, c) == True{} : Bool}
309 {B.at(Bool, False{}, B.set_at(Bool, shown, c, True{}), c) == True{} : Bool}