X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fstatic%2Flsuba_ldrop.ma;h=2ac48f35144522f6fa97b80130067a1aeae1b5b8;hb=f282b35b958c9602fb1f47e5677b5805a046ac76;hp=43de659bf42f9965ca567ae2ba22737a38e1819f;hpb=cb5ca7ea4e826e9331eabeaea44353caab00071e;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/static/lsuba_ldrop.ma b/matita/matita/contribs/lambdadelta/basic_2/static/lsuba_ldrop.ma
index 43de659bf..2ac48f351 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/static/lsuba_ldrop.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/static/lsuba_ldrop.ma
@@ -19,8 +19,8 @@ include "basic_2/static/lsuba.ma".
 (* Properties concerning basic local environment slicing ********************)
 
 (* Note: the constant 0 cannot be generalized *)
-lemma lsuba_ldrop_O1_conf: ∀G,L1,L2. G ⊢ L1 ⁝⊑ L2 → ∀K1,s,e. ⇩[s, 0, e] L1 ≡ K1 →
-                           ∃∃K2. G ⊢ K1 ⁝⊑ K2 & ⇩[s, 0, e] L2 ≡ K2.
+lemma lsuba_ldrop_O1_conf: ∀G,L1,L2. G ⊢ L1 ⁝⫃ L2 → ∀K1,s,e. ⇩[s, 0, e] L1 ≡ K1 →
+                           ∃∃K2. G ⊢ K1 ⁝⫃ K2 & ⇩[s, 0, e] L2 ≡ K2.
 #G #L1 #L2 #H elim H -L1 -L2
 [ /2 width=3/
 | #I #L1 #L2 #V #_ #IHL12 #K1 #s #e #H
@@ -41,8 +41,8 @@ lemma lsuba_ldrop_O1_conf: ∀G,L1,L2. G ⊢ L1 ⁝⊑ L2 → ∀K1,s,e. ⇩[s,
 qed-.
 
 (* Note: the constant 0 cannot be generalized *)
-lemma lsuba_ldrop_O1_trans: ∀G,L1,L2. G ⊢ L1 ⁝⊑ L2 → ∀K2,s,e. ⇩[s, 0, e] L2 ≡ K2 →
-                            ∃∃K1. G ⊢ K1 ⁝⊑ K2 & ⇩[s, 0, e] L1 ≡ K1.
+lemma lsuba_ldrop_O1_trans: ∀G,L1,L2. G ⊢ L1 ⁝⫃ L2 → ∀K2,s,e. ⇩[s, 0, e] L2 ≡ K2 →
+                            ∃∃K1. G ⊢ K1 ⁝⫃ K2 & ⇩[s, 0, e] L1 ≡ K1.
 #G #L1 #L2 #H elim H -L1 -L2
 [ /2 width=3/
 | #I #L1 #L2 #V #_ #IHL12 #K2 #s #e #H