law on_drop

minebender-game@1.0.0.0 · proof_assist.bend:106

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

106law on_drop:
107  for +w: Nat
108  for +h: Nat
109  for +ps: List<&2, T.Pos>
110  for +i: Nat
111  for +on: {PS.allp(~PS.WH, ~PS.onb, PS.WH{w, h}, ps) == True{} : Bool}
112  {PS.allp(~PS.WH, ~PS.onb, PS.WH{w, h}, List.drop(&2, T.Pos, ps, i)) == True{} : Bool}