law Bq.bag_swap
import gralha-bendquest@0.1.0.0/game.bend as Gameimport Base
748law Bq.bag_swap:
749 (@+x_0: Bq.Bag -> (@+y_1: Bq.Bag -> (@+z_2: Bq.Bag -> {Bq.Bag.add(x_0, Bq.Bag.add(y_1, z_2)) == Bq.Bag.add(y_1, Bq.Bag.add(x_0, z_2)) : Bq.Bag})))