X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Freduction%2Flpr_ldrop.ma;h=734921de30d3bb9439dc913202b3e9f56c7fe453;hb=57103fa96f504f9bffca859dd60317162396657f;hp=412d422078cb9a08074e3ba50698526c5243629b;hpb=d4a90dfb8d8a56012928a600ea2f6bd4758b51f6;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/reduction/lpr_ldrop.ma b/matita/matita/contribs/lambdadelta/basic_2/reduction/lpr_ldrop.ma
index 412d42207..734921de3 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/reduction/lpr_ldrop.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/reduction/lpr_ldrop.ma
@@ -22,24 +22,29 @@ include "basic_2/reduction/lpr.ma".
 (* Properies on local environment slicing ***********************************)
 
 (* Basic_1: includes: wcpr0_drop *)
-lemma lpr_ldrop_conf: dropable_sn lpr.
+lemma lpr_ldrop_conf: ∀G. dropable_sn (lpr G).
 /3 width=5 by lpx_sn_deliftable_dropable, cpr_inv_lift1/ qed-.
 
 (* Basic_1: includes: wcpr0_drop_back *)
-lemma ldrop_lpr_trans: dedropable_sn lpr.
+lemma ldrop_lpr_trans: ∀G. dedropable_sn (lpr G).
 /3 width=9 by lpx_sn_liftable_dedropable, cpr_lift/ qed-.
 
-lemma lpr_ldrop_trans_O1: dropable_dx lpr.
+lemma lpr_ldrop_trans_O1: ∀G. dropable_dx (lpr G).
 /2 width=3 by lpx_sn_dropable/ qed-.
 
 (* Properties on context-sensitive parallel reduction for terms *************)
 
-lemma fsup_cpr_trans: ∀L1,L2,T1,T2. ⦃L1, T1⦄ ⊃ ⦃L2, T2⦄ → ∀U2. L2 ⊢ T2 ➡ U2 →
-                      ∃∃L,U1. L1 ⊢ ➡ L & L ⊢ T1 ➡ U1 & ⦃L, U1⦄ ⊃ ⦃L2, U2⦄.
-#L1 #L2 #T1 #T2 #H elim H -L1 -L2 -T1 -T2 [1,2,3,4,5: /3 width=5/ ]
-#L1 #K1 #K2 #T1 #T2 #U1 #d #e #HLK1 #HTU1 #_ #IHT12 #U2 #HTU2
-elim (IHT12 … HTU2) -IHT12 -HTU2 #K #T #HK1 #HT1 #HT2
-elim (lift_total T d e) #U #HTU
-elim (ldrop_lpr_trans … HLK1 … HK1) -HLK1 -HK1 #L2 #HL12 #HL2K
-lapply (cpr_lift … HT1 … HL2K … HTU1 … HTU) -HT1 -HTU1 /3 width=11/
+lemma fsup_cpr_trans: ∀G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊃ ⦃G2, L2, T2⦄ →
+                      ∀U2. ⦃G2, L2⦄ ⊢ T2 ➡ U2 →
+                      ∃∃L,U1. ⦃G1, L1⦄ ⊢ ➡ L & ⦃G1, L⦄ ⊢ T1 ➡ U1 & ⦃G1, L, U1⦄ ⊃ ⦃G2, L2, U2⦄.
+#G1 #G2 #L1 #L2 #T1 #T2 #H elim H -G1 -G2 -L1 -L2 -T1 -T2 [1,2,3,4,5: /3 width=5/ ]
+[ #G #L #K #U #T #d #e #HLK #HUT #He #U2 #HU2
+  elim (lift_total U2 d e) #T2 #HUT2
+  lapply (cpr_lift … HU2 … HLK … HUT … HUT2) -HU2 -HUT /3 width=9/
+| #G1 #G2 #L1 #K1 #K2 #T1 #T2 #U1 #d #e #HLK1 #HTU1 #_ #IHT12 #U2 #HTU2
+  elim (IHT12 … HTU2) -IHT12 -HTU2 #K #T #HK1 #HT1 #HT2
+  elim (lift_total T d e) #U #HTU
+  elim (ldrop_lpr_trans … HLK1 … HK1) -HLK1 -HK1 #L2 #HL12 #HL2K
+  lapply (cpr_lift … HT1 … HL2K … HTU1 … HTU) -HT1 -HTU1 /3 width=11/
+]
 qed-.