fact: Definition PACK_len := ZERO_len+MOVE2_len+INC_len+MOVE_len+JMP_len+MOVE2_len+MOVE_len+DEC_len.
imports: Undecidability(MinskyMachines.MM MinskyMachines.MMA) Undecidability.Shared.Libs.DLW(Vec.pos Vec.vec Code.sss) PeanoNat List Lia Wf_nat ssreflect ssrbool ssrfun