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(*   Copyright Dominique Larchey-Wendling [*]                 *)
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(*                             [*] Affiliation LORIA -- CNRS  *)
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(*      This file is distributed under the terms of the       *)
(*         CeCILL v2 FREE SOFTWARE LICENSE AGREEMENT          *)
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From Undecidability.FRACTRAN
From Undecidability.MinskyMachines
Check MMA2_HALTING_undec.

Lemma MMA2_HALTS_ON_ZERO_undec : undecidable MMA2_HALTS_ON_ZERO.