X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcsx_csx_vector.ma;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcsx_csx_vector.ma;h=53473452e01c0c6232775076d2817bbb35d48897;hb=67fe9cec87e129a2a41c75d7ed8456a6f3314421;hp=571a8154685126d61a309f77c45d6a7e071a5c35;hpb=86861e6f031df66824a381527dfe847029ff72bc;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_csx_vector.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_csx_vector.ma
index 571a81546..53473452e 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_csx_vector.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_csx_vector.ma
@@ -39,8 +39,8 @@ elim (cpxs_fwd_beta_vector … H) -H #H
 qed.
 
 lemma csx_applv_delta_drops (h) (G):
-      ∀I,L,K,V1,i. ⬇*[i] L ≘ K.ⓑ{I}V1 →
-      ∀V2. ⬆*[↑i] V1 ≘ V2 →
+      ∀I,L,K,V1,i. ⇩*[i] L ≘ K.ⓑ{I}V1 →
+      ∀V2. ⇧*[↑i] V1 ≘ V2 →
       ∀Vs. ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃ⒶVs.V2⦄ → ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃ⒶVs.#i⦄.
 #h #G #I #L #K #V1 #i #HLK #V2 #HV12 #Vs elim Vs -Vs
 [ /4 width=11 by csx_inv_lifts, csx_lref_pair_drops, drops_isuni_fwd_drop2/
@@ -58,7 +58,7 @@ qed.
 
 (* Basic_1: was just: sn3_appls_abbr *)
 lemma csx_applv_theta (h) (G):
-      ∀p,L,V1b,V2b. ⬆*[1] V1b ≘ V2b →
+      ∀p,L,V1b,V2b. ⇧*[1] V1b ≘ V2b →
       ∀V,T. ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃ⓓ{p}V.ⒶV2b.T⦄ → ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃ⒶV1b.ⓓ{p}V.T⦄.
 #h #G #p #L #V1b #V2b * -V1b -V2b /2 width=1 by/
 #V1b #V2b #V1 #V2 #HV12 #H