notational change of lift, drop, and gget

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / equivalence / cpcs_cpcs.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/equivalence/cpcs_cpcs.ma b/matita/matita/contribs/lambdadelta/basic_2/equivalence/cpcs_cpcs.ma
index 8a5e0e323cf7dbbfa88aeecb7940cf98c7e46f65..0831940532f74b6251d4ed1dc02c21d572542b6e 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/equivalence/cpcs_cpcs.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/equivalence/cpcs_cpcs.ma
@@ -59,8 +59,8 @@ elim (cprs_inv_abst1 … H2) -H2 #W0 #T0 #_ #_ #H destruct
 qed-.
 
 (* Basic_1: was: pc3_gen_lift *)
-lemma cpcs_inv_lift: â\88\80G,L,K,s,d,e. â\87©[s, d, e] L ≡ K →
-                     â\88\80T1,U1. â\87§[d, e] T1 â\89¡ U1 â\86\92 â\88\80T2,U2. â\87§[d, e] T2 ≡ U2 →
+lemma cpcs_inv_lift: â\88\80G,L,K,s,d,e. â¬\87[s, d, e] L ≡ K →
+                     â\88\80T1,U1. â¬\86[d, e] T1 â\89¡ U1 â\86\92 â\88\80T2,U2. â¬\86[d, e] T2 ≡ U2 →
                      ⦃G, L⦄ ⊢ U1 ⬌* U2 → ⦃G, K⦄ ⊢ T1 ⬌* T2.
 #G #L #K #s #d #e #HLK #T1 #U1 #HTU1 #T2 #U2 #HTU2 #HU12
 elim (cpcs_inv_cprs … HU12) -HU12 #U #HU1 #HU2
@@ -144,14 +144,14 @@ lemma cpcs_bind_sn: ∀a,I,G,L,V1,V2,T. ⦃G, L⦄ ⊢ V1 ⬌* V2 → ⦃G, L⦄
 qed.
 
 lemma lsubr_cpcs_trans: ∀G,L1,T1,T2. ⦃G, L1⦄ ⊢ T1 ⬌* T2 →
-                        â\88\80L2. L2 â\8a\91 L1 → ⦃G, L2⦄ ⊢ T1 ⬌* T2.
+                        â\88\80L2. L2 â«\83 L1 → ⦃G, L2⦄ ⊢ T1 ⬌* T2.
 #G #L1 #T1 #T2 #HT12 elim (cpcs_inv_cprs … HT12) -HT12
 /3 width=5 by cprs_div, lsubr_cprs_trans/
 qed-.
 
 (* Basic_1: was: pc3_lift *)
-lemma cpcs_lift: â\88\80G,L,K,s,d,e. â\87©[s, d, e] L ≡ K →
-                 â\88\80T1,U1. â\87§[d, e] T1 â\89¡ U1 â\86\92 â\88\80T2,U2. â\87§[d, e] T2 ≡ U2 →
+lemma cpcs_lift: â\88\80G,L,K,s,d,e. â¬\87[s, d, e] L ≡ K →
+                 â\88\80T1,U1. â¬\86[d, e] T1 â\89¡ U1 â\86\92 â\88\80T2,U2. â¬\86[d, e] T2 ≡ U2 →
                  ⦃G, K⦄ ⊢ T1 ⬌* T2 → ⦃G, L⦄ ⊢ U1 ⬌* U2.
 #G #L #K #s #d #e #HLK #T1 #U1 #HTU1 #T2 #U2 #HTU2 #HT12
 elim (cpcs_inv_cprs … HT12) -HT12 #T #HT1 #HT2