- we introduced the pointer_step rc in the perspective of proving

[helm.git] / matita / matita / contribs / lambda_delta / basic_2 / reducibility / cpr_delift.ma

diff --git a/matita/matita/contribs/lambda_delta/basic_2/reducibility/cpr_delift.ma b/matita/matita/contribs/lambda_delta/basic_2/reducibility/cpr_delift.ma
index 7437e6ac8aed14091fcee8852e49e0a93e14f372..04eb4ae23531ad6959f45569085906fbf9ab5f30 100644 (file)
--- a/matita/matita/contribs/lambda_delta/basic_2/reducibility/cpr_delift.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/reducibility/cpr_delift.ma
@@ -22,8 +22,8 @@ include "basic_2/reducibility/cpr.ma".
 
 (* Basic_1: was only: pr2_gen_cabbr *)
 lemma thin_cpr_delift_conf: ∀L,U1,U2. L ⊢ U1 ➡ U2 →
-                            ∀K,d,e. L [d, e] ≡ K → ∀T1. L ⊢ U1 [d, e] ≡ T1 →
-                            ∃∃T2. K ⊢ T1 ➡ T2 & L ⊢ U2 [d, e] ≡ T2.
+                            ∀K,d,e. ▼*[d, e] L ≡ K → ∀T1. L ⊢ ▼*[d, e] U1 ≡ T1 →
+                            ∃∃T2. K ⊢ T1 ➡ T2 & L ⊢ ▼*[d, e] U2 ≡ T2.
 #L #U1 #U2 * #U #HU1 #HU2 #K #d #e #HLK #T1 #HTU1
 elim (tpr_delift_conf … HU1 … HTU1) -U1 #T #HT1 #HUT
 elim (le_or_ge (|L|) d) #Hd