law tcontains_pre
import minebender-game@1.0.0.0/proof_solver.bend as ProofSolverimport Base
import minebender-game@1.0.0.0/types.bend as T
import minebender-game@1.0.0.0/solver.bend as S
2585law tcontains_pre:
2586 for +pre: List<&2, S.Todo>
2587 for +base: List<&2, S.Todo>
2588 for +q: T.Pos
2589 for e: {tcontains(base, q) == True{} : Bool}
2590 {tcontains(List.append(&2, S.Todo, pre, base), q) == True{} : Bool}