X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Flsubv_drops.ma;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Flsubv_drops.ma;h=6b0daf223665780c6e1cf4516219e732a8da1296;hb=ba7b8553850e4a33cf8607b07758392230d9ed40;hp=63b53ec7261be355d440b1101a5edd62862054f7;hpb=c0d38a82464481e3c8fd68e4b00d7b9b448df462;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubv_drops.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubv_drops.ma
index 63b53ec72..6b0daf223 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubv_drops.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubv_drops.ma
@@ -21,11 +21,11 @@ include "basic_2/dynamic/lsubv.ma".
 
 (* Note: the premise 𝐔⦃f⦄ cannot be removed *)
 (* Basic_2A1: includes: lsubsv_drop_O1_conf *)
-lemma lsubv_drops_conf_isuni (a) (h) (G):
-      ∀L1,L2. G ⊢ L1 ⫃![a,h] L2 →
+lemma lsubv_drops_conf_isuni (h) (a) (G):
+      ∀L1,L2. G ⊢ L1 ⫃![h,a] L2 →
       ∀b,f,K1. 𝐔⦃f⦄ → ⬇*[b,f] L1 ≘ K1 →
-      ∃∃K2. G ⊢ K1 ⫃![a,h] K2 & ⬇*[b,f] L2 ≘ K2.
-#a #h #G #L1 #L2 #H elim H -L1 -L2
+      ∃∃K2. G ⊢ K1 ⫃![h,a] K2 & ⬇*[b,f] L2 ≘ K2.
+#h #a #G #L1 #L2 #H elim H -L1 -L2
 [ /2 width=3 by ex2_intro/
 | #I #L1 #L2 #HL12 #IH #b #f #K1 #Hf #H
   elim (drops_inv_bind1_isuni … Hf H) -Hf -H *
@@ -46,11 +46,11 @@ qed-.
 
 (* Note: the premise 𝐔⦃f⦄ cannot be removed *)
 (* Basic_2A1: includes: lsubsv_drop_O1_trans *)
-lemma lsubv_drops_trans_isuni (a) (h) (G):
-      ∀L1,L2. G ⊢ L1 ⫃![a,h] L2 →
+lemma lsubv_drops_trans_isuni (h) (a) (G):
+      ∀L1,L2. G ⊢ L1 ⫃![h,a] L2 →
       ∀b,f,K2. 𝐔⦃f⦄ → ⬇*[b,f] L2 ≘ K2 →
-      ∃∃K1. G ⊢ K1 ⫃![a,h] K2 & ⬇*[b,f] L1 ≘ K1.
-#a #h #G #L1 #L2 #H elim H -L1 -L2
+      ∃∃K1. G ⊢ K1 ⫃![h,a] K2 & ⬇*[b,f] L1 ≘ K1.
+#h #a #G #L1 #L2 #H elim H -L1 -L2
 [ /2 width=3 by ex2_intro/
 | #I #L1 #L2 #HL12 #IH #b #f #K2 #Hf #H
   elim (drops_inv_bind1_isuni … Hf H) -Hf -H *