Require Import Undecidability.Synthetic.Undecidability.

From Undecidability.PCP
  Require Import PCP PCP_undec.

From Undecidability.StackMachines
  Require Import BSM iPCPb_to_BSM_HALTING.


Theorem BSM_undec : undecidable (BSM_HALTING).
Proof.
  apply (undecidability_from_reducibility iPCPb_undec).
  apply iPCPb_to_BSM_HALTING.
Qed.