- substitution lemma for native type assignmenr proved!

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

diff --git a/matita/matita/contribs/lambda_delta/basic_2/computation/lsubc_ldrops.ma b/matita/matita/contribs/lambda_delta/basic_2/computation/lsubc_ldrops.ma
index a61272c732115dc2ea02dc049eac72041ef427a3..4e26322a51233897094bc61d549e3b6664e15215 100644 (file)
--- a/matita/matita/contribs/lambda_delta/basic_2/computation/lsubc_ldrops.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/computation/lsubc_ldrops.ma
@@ -21,8 +21,8 @@ include "basic_2/computation/lsubc_ldrop.ma".
 (* Basic_1: was: csubc_drop1_conf_rev *)
 lemma ldrops_lsubc_trans: ∀RR,RS,RP.
                           acp RR RS RP → acr RR RS RP (λL,T. RP L T) →
-                          ∀L1,K1,des. ⇩*[des] L1 ≡ K1 → ∀K2. K1 [RP] ⊑ K2 →
-                          ∃∃L2. L1 [RP] ⊑ L2 & ⇩*[des] L2 ≡ K2.
+                          ∀L1,K1,des. ⇩*[des] L1 ≡ K1 → ∀K2. K1 ⊑[RP] K2 →
+                          ∃∃L2. L1 ⊑[RP] L2 & ⇩*[des] L2 ≡ K2.
 #RR #RS #RP #Hacp #Hacr #L1 #K1 #des #H elim H -L1 -K1 -des
 [ /2 width=3/
 | #L1 #L #K1 #des #d #e #_ #HLK1 #IHL #K2 #HK12