fact: Definition κ_norm := (@κ_pos, @κ_21, @κ_32, @κ_43, @κ_54, @κ_mod2, @κ_mod3, @κ_mod4).
imports: ZArith List PeanoNat Lia Relations.Relation_Operators Relations.Operators_Properties Undecidability.MinskyMachines.MM2 Undecidability.CounterMachines.Util.CM1_facts Undecidability.MinskyMachines.Util.MM2_facts ssreflect ssrbool ssrfun