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diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpmre_aaa.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpmre_aaa.ma
index 0c695ceff..8639ec1a3 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpmre_aaa.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpmre_aaa.ma
@@ -22,11 +22,11 @@ include "basic_2/rt_computation/cprre_cpms.ma".
 (* Properties with atomic atomic arity assignment on terms ******************)
 
 lemma cpmre_total_aaa (h) (n) (A) (G) (L):
-      ∀T1. ❪G,L❫ ⊢ T1 ⁝ A → ∃T2. ❪G,L❫ ⊢ T1 ➡*[h,n] 𝐍❪T2❫.
+      ∀T1. ❪G,L❫ ⊢ T1 ⁝ A → ∃T2. ❪G,L❫ ⊢ T1 ➡*𝐍[h,n] T2.
 #h #n #A #G #L #T1 #HT1
 elim (cpms_total_aaa h … n … HT1) #T0 #HT10
 elim (cprre_total_csx h G L T0)
 [ #T2 /3 width=4 by cpms_cprre_trans, ex_intro/
-| /4 width=4 by cpms_fwd_cpxs, aaa_csx, csx_cpxs_trans/
+| /4 width=5 by cpms_fwd_cpxs, aaa_csx, csx_cpxs_trans/
 ]
 qed-.