X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcsx_vector.ma;h=d436de7742d1b12c7a2a43c65d2b1f669e0c3ca1;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hp=f4b85eb9d2566f8a40a64921f16e58a33ead0b26;hpb=5b5dca0c118dfbe3ba8f0514ef07549544eb7810;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_vector.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_vector.ma
index f4b85eb9d..d436de774 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_vector.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_vector.ma
@@ -26,14 +26,14 @@ interpretation
 
 (* Basic inversion lemmas ***************************************************)
 
-lemma csxv_inv_cons: ∀h,G,L,T,Ts. ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃T⨮Ts⦄ →
-                     ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃T⦄ ∧ ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃Ts⦄.
+lemma csxv_inv_cons: ∀h,G,L,T,Ts. ❪G,L❫ ⊢ ⬈*[h] 𝐒❪T⨮Ts❫ →
+                     ❪G,L❫ ⊢ ⬈*[h] 𝐒❪T❫ ∧ ❪G,L❫ ⊢ ⬈*[h] 𝐒❪Ts❫.
 normalize // qed-.
 
 (* Basic forward lemmas *****************************************************)
 
-lemma csx_fwd_applv: ∀h,G,L,T,Vs. ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃ⒶVs.T⦄ →
-                     ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃Vs⦄ ∧ ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃T⦄.
+lemma csx_fwd_applv: ∀h,G,L,T,Vs. ❪G,L❫ ⊢ ⬈*[h] 𝐒❪ⒶVs.T❫ →
+                     ❪G,L❫ ⊢ ⬈*[h] 𝐒❪Vs❫ ∧ ❪G,L❫ ⊢ ⬈*[h] 𝐒❪T❫.
 #h #G #L #T #Vs elim Vs -Vs /2 width=1 by conj/
 #V #Vs #IHVs #HVs
 lapply (csx_fwd_pair_sn … HVs) #HV