proposition: Lemma init_a0b0 : mm2'_reaches (1, (0, 0)) (1+a0+b0, (a0, b0)).
proof: Proof. by apply: rt_trans; [apply: (init_a0 a0)|apply: (init_b0 b0)]. Qed.
imports: List PeanoNat Lia Relations.Relation_Operators Relations.Operators_Properties Undecidability.MinskyMachines.MM2 Undecidability.MinskyMachines.Util.MM2_facts ssreflect ssrbool ssrfun