X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Frsx_fqup.ma;h=c654e372923a05d107643c801d786f7d120a9774;hp=bd56111e13cfa38bbffcd707aacbe1591216233c;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx_fqup.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx_fqup.ma
index bd56111e1..c654e3729 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx_fqup.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx_fqup.ma
@@ -20,7 +20,7 @@ include "basic_2/rt_computation/rsx.ma".
 (* Advanced properties ******************************************************)
 
 (* Basic_2A1: uses: lsx_atom *)
-lemma lfsx_atom (h) (G) (T): G ⊢ ⬈*[h,T] 𝐒⦃⋆⦄.
+lemma lfsx_atom (h) (G) (T): G ⊢ ⬈*[h,T] 𝐒❪⋆❫.
 #h #G #T
 @rsx_intro #Y #H #HnT
 lapply (lpx_inv_atom_sn … H) -H #H destruct
@@ -33,7 +33,7 @@ qed.
 (* Note: the exclusion binder (ⓧ) makes this more elegant and much simpler *)
 (* Note: the old proof without the exclusion binder requires lreq *)
 lemma rsx_fwd_bind_dx_void (h) (G):
-      ∀p,I,L,V,T. G ⊢ ⬈*[h,ⓑ{p,I}V.T] 𝐒⦃L⦄ → G ⊢ ⬈*[h,T] 𝐒⦃L.ⓧ⦄.
+      ∀p,I,L,V,T. G ⊢ ⬈*[h,ⓑ[p,I]V.T] 𝐒❪L❫ → G ⊢ ⬈*[h,T] 𝐒❪L.ⓧ❫.
 #h #G #p #I #L #V #T #H
 @(rsx_ind … H) -L #L1 #_ #IH
 @rsx_intro #Y #H #HT
@@ -45,6 +45,6 @@ qed-.
 
 (* Basic_2A1: uses: lsx_inv_bind *)
 lemma rsx_inv_bind_void (h) (G):
-      ∀p,I,L,V,T. G ⊢ ⬈*[h,ⓑ{p,I}V.T] 𝐒⦃L⦄ →
-      ∧∧ G ⊢ ⬈*[h,V] 𝐒⦃L⦄ & G ⊢ ⬈*[h,T] 𝐒⦃L.ⓧ⦄.
+      ∀p,I,L,V,T. G ⊢ ⬈*[h,ⓑ[p,I]V.T] 𝐒❪L❫ →
+      ∧∧ G ⊢ ⬈*[h,V] 𝐒❪L❫ & G ⊢ ⬈*[h,T] 𝐒❪L.ⓧ❫.
 /3 width=4 by rsx_fwd_pair_sn, rsx_fwd_bind_dx_void, conj/ qed-.