- predefined_virtuals: some additions

[helm.git] / matita / matita / contribs / lambda_delta / basic_2 / computation / cprs_delift.ma

diff --git a/matita/matita/contribs/lambda_delta/basic_2/computation/cprs_delift.ma b/matita/matita/contribs/lambda_delta/basic_2/computation/cprs_delift.ma
index 65488a7347a09d4c68aacdd6adc1d97cee17af94..14b516624f89b3ae2a0983a88ea3bfdd76da9f57 100644 (file)
--- a/matita/matita/contribs/lambda_delta/basic_2/computation/cprs_delift.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/computation/cprs_delift.ma
@@ -21,8 +21,8 @@ include "basic_2/computation/cprs.ma".
 
 (* Basic_1: was only: pr3_gen_cabbr *)
 lemma thin_cprs_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. L ▼*[d, e] ≡ K → ∀T1. L ⊢ U1 ▼*[d, e] ≡ T1 →
+                             ∃∃T2. K ⊢ T1 ➡* T2 & L ⊢ U2 ▼*[d, e] ≡ T2.
 #L #U1 #U2 #H @(cprs_ind … H) -U2 /2 width=3/
 #U #U2 #_ #HU2 #IHU1 #K #d #e #HLK #T1 #HTU1
 elim (IHU1 … HLK … HTU1) -U1 #T #HT1 #HUT