- predefined_virtuals: an addition

[helm.git] / matita / matita / contribs / lambda_delta / basic_2 / dynamic / lsubn_nta.ma

diff --git a/matita/matita/contribs/lambda_delta/basic_2/dynamic/lsubn_nta.ma b/matita/matita/contribs/lambda_delta/basic_2/dynamic/lsubn_nta.ma
index 6f91a1c52a3533eedcadf7b867f931c1908611d8..5832b00b61bd3f0b2fe768d2c42cbca6d5baeaed 100644 (file)
--- a/matita/matita/contribs/lambda_delta/basic_2/dynamic/lsubn_nta.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/dynamic/lsubn_nta.ma
@@ -14,6 +14,7 @@
 
 include "basic_2/dynamic/nta_nta.ma".
 include "basic_2/dynamic/lsubn_ldrop.ma".
+include "basic_2/dynamic/lsubn_cpcs.ma".
 
 (* LOCAL ENVIRONMENT REFINEMENT FOR NATIVE TYPE ASSIGNMENT ******************)
 
@@ -21,9 +22,8 @@ include "basic_2/dynamic/lsubn_ldrop.ma".
 
 (* Note: the corresponding confluence property does not hold *)
 (* Basic_1: was: csubt_ty3 *)
-axiom lsubn_nta_trans: ∀h,L2,T,U. ⦃h, L2⦄ ⊢ T : U → ∀L1. h ⊢ L1 :⊑ L2 →
+lemma lsubn_nta_trans: ∀h,L2,T,U. ⦃h, L2⦄ ⊢ T : U → ∀L1. h ⊢ L1 :⊑ L2 →
                        ⦃h, L1⦄ ⊢ T : U.
-(*
 #h #L2 #T #U #H elim H -L2 -T -U
 [ //
 | #L2 #K2 #V2 #W2 #U2 #i #HLK2 #_ #WU2 #IHVW2 #L1 #HL12
@@ -42,6 +42,6 @@ axiom lsubn_nta_trans: ∀h,L2,T,U. ⦃h, L2⦄ ⊢ T : U → ∀L1. h ⊢ L1 :
 | /3 width=1/
 | /3 width=2/
 | /3 width=1/
+| /4 width=6/
 ]
 qed.
-*)