X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Fcnv_cpmuwe.ma;h=ce73661f85265d67aab1ee1b03d715b05d23ddf9;hp=09dcccc3d8fbc74066f4ecf0822b2ae2450d0cb5;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpmuwe.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpmuwe.ma
index 09dcccc3d..ce73661f8 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpmuwe.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpmuwe.ma
@@ -21,21 +21,21 @@ include "basic_2/dynamic/cnv_preserve.ma".
 (* Properties with t-unbound whd evaluation on terms ************************)
 
 lemma cnv_cpmuwe_trans (h) (a) (G) (L):
-      ∀T1. ⦃G,L⦄ ⊢ T1 ![h,a] →
-      ∀n,T2. ⦃G,L⦄ ⊢ T1 ➡*𝐍𝐖*[h,n] T2 → ⦃G,L⦄ ⊢ T2 ![h,a].
+      ∀T1. ❪G,L❫ ⊢ T1 ![h,a] →
+      ∀n,T2. ❪G,L❫ ⊢ T1 ➡*𝐍𝐖*[h,n] T2 → ❪G,L❫ ⊢ T2 ![h,a].
 /3 width=4 by cpmuwe_fwd_cpms, cnv_cpms_trans/ qed-.
 
 lemma cnv_R_cpmuwe_total (h) (a) (G) (L):
-      ∀T1. ⦃G,L⦄ ⊢ T1 ![h,a] → ∃n. R_cpmuwe h G L T1 n.
+      ∀T1. ❪G,L❫ ⊢ T1 ![h,a] → ∃n. R_cpmuwe h G L T1 n.
 /4 width=2 by cnv_fwd_fsb, fsb_inv_csx, R_cpmuwe_total_csx/ qed-.
 
 (* Main inversions with head evaluation for t-bound rt-transition on terms **)
 
 theorem cnv_cpmuwe_mono (h) (a) (G) (L):
-        ∀T0. ⦃G,L⦄ ⊢ T0 ![h,a] →
-        ∀n1,T1. ⦃G,L⦄ ⊢ T0 ➡*𝐍𝐖*[h,n1] T1 →
-        ∀n2,T2. ⦃G,L⦄ ⊢ T0 ➡*𝐍𝐖*[h,n2] T2 →
-        ∧∧ ⦃G,L⦄ ⊢ T1 ⬌*[h,n2-n1,n1-n2] T2 & T1 ≅ T2.
+        ∀T0. ❪G,L❫ ⊢ T0 ![h,a] →
+        ∀n1,T1. ❪G,L❫ ⊢ T0 ➡*𝐍𝐖*[h,n1] T1 →
+        ∀n2,T2. ❪G,L❫ ⊢ T0 ➡*𝐍𝐖*[h,n2] T2 →
+        ∧∧ ❪G,L❫ ⊢ T1 ⬌*[h,n2-n1,n1-n2] T2 & T1 ≅ T2.
 #h #a #G #L #T0 #HT0 #n1 #T1 * #HT01 #HT1 #n2 #T2 * #HT02 #HT2
 elim (cnv_cpms_conf … HT0 … HT01 … HT02) -T0 #T0 #HT10 #HT20
 /4 width=4 by cpms_div, tweq_canc_dx, conj/