X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Freduction%2Flpr_ldrop.ma;h=a0f04dd964bc0682278ad5e424a89aaeb8d12b87;hb=2ba2dc23443ad764adab652e06d6f5ed10bd912d;hp=734921de30d3bb9439dc913202b3e9f56c7fe453;hpb=8ed01fd6a38bea715ceb449bb7b72a46bad87851;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 734921de3..a0f04dd96 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/reduction/lpr_ldrop.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/reduction/lpr_ldrop.ma
@@ -12,7 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include "basic_2/relocation/fsup.ma".
+include "basic_2/relocation/fquq_alt.ma".
 include "basic_2/relocation/ldrop_lpx_sn.ma".
 include "basic_2/reduction/cpr_lift.ma".
 include "basic_2/reduction/lpr.ma".
@@ -23,28 +23,32 @@ include "basic_2/reduction/lpr.ma".
 
 (* Basic_1: includes: wcpr0_drop *)
 lemma lpr_ldrop_conf: ∀G. dropable_sn (lpr G).
-/3 width=5 by lpx_sn_deliftable_dropable, cpr_inv_lift1/ qed-.
+/3 width=6 by lpx_sn_deliftable_dropable, cpr_inv_lift1/ qed-.
 
 (* Basic_1: includes: wcpr0_drop_back *)
 lemma ldrop_lpr_trans: ∀G. dedropable_sn (lpr G).
-/3 width=9 by lpx_sn_liftable_dedropable, cpr_lift/ qed-.
+/3 width=10 by lpx_sn_liftable_dedropable, cpr_lift/ qed-.
 
 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: ∀G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊃ ⦃G2, L2, T2⦄ →
+lemma fqu_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
+/3 width=5 by fqu_lref_O, fqu_pair_sn, fqu_bind_dx, fqu_flat_dx, lpr_pair, cpr_pair_sn, cpr_atom, cpr_bind, cpr_flat, ex3_2_intro/
+#G #L #K #U #T #e #HLK #HUT #U2 #HU2
+elim (lift_total U2 0 (e+1)) #T2 #HUT2
+lapply (cpr_lift … HU2 … HLK … HUT … HUT2) -HU2 -HUT /3 width=9 by fqu_drop, ex3_2_intro/
+qed-.
+
+lemma fquq_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/
+                      ∃∃L,U1. ⦃G1, L1⦄ ⊢ ➡ L & ⦃G1, L⦄ ⊢ T1 ➡ U1 & ⦃G1, L, U1⦄ ⊃⸮ ⦃G2, L2, U2⦄.
+#G1 #G2 #L1 #L2 #T1 #T2 #H #U2 #HTU2 elim (fquq_inv_gen … H) -H
+[ #HT12 elim (fqu_cpr_trans … HT12 … HTU2) /3 width=5 by fqu_fquq, ex3_2_intro/
+| * #H1 #H2 #H3 destruct /2 width=5 by ex3_2_intro/
 ]
 qed-.