+++ /dev/null
-(**************************************************************************)
-(* ___ *)
-(* ||M|| *)
-(* ||A|| A project by Andrea Asperti *)
-(* ||T|| *)
-(* ||I|| Developers: *)
-(* ||T|| The HELM team. *)
-(* ||A|| http://helm.cs.unibo.it *)
-(* \ / *)
-(* \ / This file is distributed under the terms of the *)
-(* v GNU General Public License Version 2 *)
-(* *)
-(**************************************************************************)
-
-include "ground/arith/nat_plus_rplus.ma".
-include "ground/relocation/gr_pat_uni.ma".
-include "ground/relocation/gr_nat_nat.ma".
-
-(* NON-NEGATIVE APPLICATION FOR GENERIC RELOCATION MAPS *********************)
-
-(* Constructions with gr_uni ************************************************)
-
-lemma gr_nat_uni (n) (l):
- @↑❪l,𝐮❨n❩❫ ≘ l+n.
-/2 width=1 by gr_nat_pred_bi/
-qed.
-
-(* Inversions with gr_uni ***************************************************)
-
-lemma gr_nat_inv_uni (n) (l) (k):
- @↑❪l,𝐮❨n❩❫ ≘ k → k = l+n.
-/2 width=4 by gr_nat_mono/ qed-.