fact: Definition vec_simpl := (@vec_pos_append_L, @vec_pos_append_R, @vec_change_append_L, @vec_change_append_R, @vec_pos_cons, @vec_pos_hd, @vec_change_cons, @vec_change_hd).
imports: Undecidability(MinskyMachines.MM MinskyMachines.MMA L.L) Undecidability.Shared.Libs.DLW(Vec.pos Vec.vec Code.sss Code.subcode) Undecidability(MinskyMachines.Util.MMA_pairing L.AbstractMachines.wCBV) PeanoNat List Lia Wf_nat ssreflect ssrbool ssrfun