X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Fsnv_lift.ma;h=6430cbcd522d339ac5a00da0a9881c8d3f645540;hb=e62715437a9c39244c9809c00585a5ef44a39797;hp=4d9e1d0cc935f71e72ab305df77aeecd4a8765f6;hpb=c60524dec7ace912c416a90d6b926bee8553250b;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/snv_lift.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/snv_lift.ma
index 4d9e1d0cc..6430cbcd5 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/snv_lift.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/snv_lift.ma
@@ -20,57 +20,64 @@ include "basic_2/dynamic/snv.ma".
 
 (* Relocation properties ****************************************************)
 
-lemma snv_lift: ∀h,g,G,K,T. ⦃G, K⦄ ⊢ T ¡[h, g] → ∀L,s,l,m. ⬇[s, l, m] L ≡ K →
-                ∀U. ⬆[l, m] T ≡ U → ⦃G, L⦄ ⊢ U ¡[h, g].
-#h #g #G #K #T #H elim H -G -K -T
-[ #G #K #k #L #s #l #m #_ #X #H
-  >(lift_inv_sort1 … H) -X -K -l -m //
-| #I #G #K #K0 #V #i #HK0 #_ #IHV #L #s #l #m #HLK #X #H
+| nv_lref: ∀I,G,L,K,V,i. ⬇[i] L ≘ K.ⓑ{I}V → nv a h G K V → nv a h G L (#i)
+
+lemma nv_inv_lref: ∀a,h,G,L,i. ⦃G, L⦄ ⊢ #i ![a, h] →
+                    ∃∃I,K,V. ⬇[i] L ≘ K.ⓑ{I}V & ⦃G, K⦄ ⊢ V ![a, h].
+/2 width=3 by nv_inv_lref_aux/ qed-.
+
+
+lemma snv_lift: ∀h,o,G,K,T. ⦃G, K⦄ ⊢ T ¡[h, o] → ∀L,b,l,k. ⬇[b, l, k] L ≘ K →
+                ∀U. ⬆[l, k] T ≘ U → ⦃G, L⦄ ⊢ U ¡[h, o].
+#h #o #G #K #T #H elim H -G -K -T
+[ #G #K #s #L #b #l #k #_ #X #H
+  >(lift_inv_sort1 … H) -X -K -l -k //
+| #I #G #K #K0 #V #i #HK0 #_ #IHV #L #b #l #k #HLK #X #H
   elim (lift_inv_lref1 … H) * #Hil #H destruct
-  [ elim (drop_trans_le … HLK … HK0) -K /2 width=2 by lt_to_le/ #X #HL0 #H
-    elim (drop_inv_skip2 … H) -H /2 width=1 by lt_plus_to_minus_r/ -Hil #L0 #W #HLK0 #HVW #H destruct
+  [ elim (drop_trans_le … HLK … HK0) -K /2 width=2 by ylt_fwd_le/ #X #HL0 #H
+    elim (drop_inv_skip2 … H) -H /2 width=1 by ylt_to_minus/ -Hil #L0 #W #HLK0 #HVW #H destruct
     /3 width=9 by snv_lref/
   | lapply (drop_trans_ge … HLK … HK0 ?) -K
     /3 width=9 by snv_lref, drop_inv_gen/
   ]
-| #a #I #G #K #V #T #_ #_ #IHV #IHT #L #s #l #m #HLK #X #H
+| #a #I #G #K #V #T #_ #_ #IHV #IHT #L #b #l #k #HLK #X #H
   elim (lift_inv_bind1 … H) -H #W #U #HVW #HTU #H destruct
   /4 width=5 by snv_bind, drop_skip/
-| #a #G #K #V #W0 #T #U0 #d #_ #_ #HVW0 #HTU0 #IHV #IHT #L #s #l #m #HLK #X #H
+| #a #G #K #V #W0 #T #U0 #d #_ #_ #HVW0 #HTU0 #IHV #IHT #L #b #l #k #HLK #X #H
   elim (lift_inv_flat1 … H) -H #W #U #HVW #HTU #H destruct
-  elim (lift_total W0 l m)
-  elim (lift_total U0 (l+1) m)
+  elim (lift_total W0 l k)
+  elim (lift_total U0 (l+1) k)
   /4 width=17 by snv_appl, scpds_lift, lift_bind/
-| #G #K #V #T #U0 #_ #_ #HVU0 #HTU0 #IHV #IHT #L #s #l #m #HLK #X #H
+| #G #K #V #T #U0 #_ #_ #HVU0 #HTU0 #IHV #IHT #L #b #l #k #HLK #X #H
   elim (lift_inv_flat1 … H) -H #W #U #HVW #HTU #H destruct
-  elim (lift_total U0 l m)
+  elim (lift_total U0 l k)
   /3 width=12 by snv_cast, scpds_lift/
 ]
 qed.
 
-lemma snv_inv_lift: ∀h,g,G,L,U. ⦃G, L⦄ ⊢ U ¡[h, g] → ∀K,s,l,m. ⬇[s, l, m] L ≡ K →
-                    ∀T. ⬆[l, m] T ≡ U → ⦃G, K⦄ ⊢ T ¡[h, g].
-#h #g #G #L #U #H elim H -G -L -U
-[ #G #L #k #K #s #l #m #_ #X #H
-  >(lift_inv_sort2 … H) -X -L -l -m //
-| #I #G #L #L0 #W #i #HL0 #_ #IHW #K #s #l #m #HLK #X #H
+lemma snv_inv_lift: ∀h,o,G,L,U. ⦃G, L⦄ ⊢ U ¡[h, o] → ∀K,b,l,k. ⬇[b, l, k] L ≘ K →
+                    ∀T. ⬆[l, k] T ≘ U → ⦃G, K⦄ ⊢ T ¡[h, o].
+#h #o #G #L #U #H elim H -G -L -U
+[ #G #L #s #K #b #l #k #_ #X #H
+  >(lift_inv_sort2 … H) -X -L -l -k //
+| #I #G #L #L0 #W #i #HL0 #_ #IHW #K #b #l #k #HLK #X #H
   elim (lift_inv_lref2 … H) * #Hil #H destruct
-  [ elim (drop_conf_le … HLK … HL0) -L /2 width=2 by lt_to_le/ #X #HK0 #H
-    elim (drop_inv_skip1 … H) -H /2 width=1 by lt_plus_to_minus_r/ -Hil #K0 #V #HLK0 #HVW #H destruct
+  [ elim (drop_conf_le … HLK … HL0) -L /2 width=2 by ylt_fwd_le/ #X #HK0 #H
+    elim (drop_inv_skip1 … H) -H /2 width=1 by ylt_to_minus/ -Hil #K0 #V #HLK0 #HVW #H destruct
     /3 width=12 by snv_lref/
   | lapply (drop_conf_ge … HLK … HL0 ?) -L /3 width=9 by snv_lref/
   ]
-| #a #I #G #L #W #U #_ #_ #IHW #IHU #K #s #l #m #HLK #X #H
+| #a #I #G #L #W #U #_ #_ #IHW #IHU #K #b #l #k #HLK #X #H
   elim (lift_inv_bind2 … H) -H #V #T #HVW #HTU #H destruct
   /4 width=5 by snv_bind, drop_skip/
-| #a #G #L #W #W1 #U #U1 #d #_ #_ #HW1 #HU1 #IHW #IHU #K #s #l #m #HLK #X #H
+| #a #G #L #W #W1 #U #U1 #d #_ #_ #HW1 #HU1 #IHW #IHU #K #b #l #k #HLK #X #H
   elim (lift_inv_flat2 … H) -H #V #T #HVW #HTU #H destruct
   elim (scpds_inv_lift1 … HW1 … HLK … HVW) -HW1 #W0 #HW01 #HVW0
   elim (scpds_inv_lift1 … HU1 … HLK … HTU) -HU1 #X #H #HTU0
   elim (lift_inv_bind2 … H) -H #Y #U0 #HY #HU01 #H destruct
   lapply (lift_inj … HY … HW01) -HY #H destruct
   /3 width=6 by snv_appl/
-| #G #L #W #U #U1 #_ #_ #HWU1 #HU1 #IHW #IHU #K #s #l #m #HLK #X #H
+| #G #L #W #U #U1 #_ #_ #HWU1 #HU1 #IHW #IHU #K #b #l #k #HLK #X #H
   elim (lift_inv_flat2 … H) -H #V #T #HVW #HTU #H destruct
   elim (scpds_inv_lift1 … HWU1 … HLK … HVW) -HWU1 #U0 #HU01 #HVU0
   elim (scpds_inv_lift1 … HU1 … HLK … HTU) -HU1 #X #HX #HTU0 
@@ -81,9 +88,9 @@ qed-.
 
 (* Properties on subclosure *************************************************)
 
-lemma snv_fqu_conf: ∀h,g,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐ ⦃G2, L2, T2⦄ →
-                    ⦃G1, L1⦄ ⊢ T1 ¡[h, g] → ⦃G2, L2⦄ ⊢ T2 ¡[h, g].
-#h #g #G1 #G2 #L1 #L2 #T1 #T2 #H elim H -G1 -G2 -L1 -L2 -T1 -T2
+lemma snv_fqu_conf: ∀h,o,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐ ⦃G2, L2, T2⦄ →
+                    ⦃G1, L1⦄ ⊢ T1 ¡[h, o] → ⦃G2, L2⦄ ⊢ T2 ¡[h, o].
+#h #o #G1 #G2 #L1 #L2 #T1 #T2 #H elim H -G1 -G2 -L1 -L2 -T1 -T2
 [ #I1 #G1 #L1 #V1 #H
   elim (snv_inv_lref … H) -H #I2 #L2 #V2 #H #HV2
   lapply (drop_inv_O2 … H) -H #H destruct //
@@ -98,20 +105,20 @@ lemma snv_fqu_conf: ∀h,g,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐ ⦃G2, L2, T2
 ]
 qed-.
 
-lemma snv_fquq_conf: ∀h,g,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐⸮ ⦃G2, L2, T2⦄ →
-                     ⦃G1, L1⦄ ⊢ T1 ¡[h, g] → ⦃G2, L2⦄ ⊢ T2 ¡[h, g].
-#h #g #G1 #G2 #L1 #L2 #T1 #T2 #H elim (fquq_inv_gen … H) -H [|*]
+lemma snv_fquq_conf: ∀h,o,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐⸮ ⦃G2, L2, T2⦄ →
+                     ⦃G1, L1⦄ ⊢ T1 ¡[h, o] → ⦃G2, L2⦄ ⊢ T2 ¡[h, o].
+#h #o #G1 #G2 #L1 #L2 #T1 #T2 #H elim (fquq_inv_gen … H) -H [|*]
 /2 width=5 by snv_fqu_conf/
 qed-.
 
-lemma snv_fqup_conf: ∀h,g,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐+ ⦃G2, L2, T2⦄ →
-                     ⦃G1, L1⦄ ⊢ T1 ¡[h, g] → ⦃G2, L2⦄ ⊢ T2 ¡[h, g].
-#h #g #G1 #G2 #L1 #L2 #T1 #T2 #H @(fqup_ind … H) -G2 -L2 -T2
+lemma snv_fqup_conf: ∀h,o,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐+ ⦃G2, L2, T2⦄ →
+                     ⦃G1, L1⦄ ⊢ T1 ¡[h, o] → ⦃G2, L2⦄ ⊢ T2 ¡[h, o].
+#h #o #G1 #G2 #L1 #L2 #T1 #T2 #H @(fqup_ind … H) -G2 -L2 -T2
 /3 width=5 by fqup_strap1, snv_fqu_conf/
 qed-.
 
-lemma snv_fqus_conf: ∀h,g,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐* ⦃G2, L2, T2⦄ →
-                     ⦃G1, L1⦄ ⊢ T1 ¡[h, g] → ⦃G2, L2⦄ ⊢ T2 ¡[h, g].
-#h #g #G1 #G2 #L1 #L2 #T1 #T2 #H elim (fqus_inv_gen … H) -H [|*]
+lemma snv_fqus_conf: ∀h,o,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐* ⦃G2, L2, T2⦄ →
+                     ⦃G1, L1⦄ ⊢ T1 ¡[h, o] → ⦃G2, L2⦄ ⊢ T2 ¡[h, o].
+#h #o #G1 #G2 #L1 #L2 #T1 #T2 #H elim (fqus_inv_gen … H) -H [|*]
 /2 width=5 by snv_fqup_conf/
 qed-.