X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Funfold%2Fthin_delift.ma;h=b5ffc5e4f01fb19c230fb53128cc195719266f61;hb=7bedf1797ba168f0742194b2add69575e5d4a5cd;hp=faf9f4506581989e39e0b52312fed0d1986a7bb0;hpb=5ea90cbbb01fe0bf3b77221d9e6c87002982621f;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/basic_2/unfold/thin_delift.ma b/matita/matita/contribs/lambda_delta/basic_2/unfold/thin_delift.ma
index faf9f4506..b5ffc5e4f 100644
--- a/matita/matita/contribs/lambda_delta/basic_2/unfold/thin_delift.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/unfold/thin_delift.ma
@@ -25,20 +25,18 @@ lemma thin_inv_delift1: ∀I,K1,V1,L2,d,e. ▼*[d, e] K1. ⓑ{I} V1 ≡ L2 → 0
                                  K1 ⊢ ▼*[d - 1, e] V1 ≡ V2 &
                                  L2 = K2. ⓑ{I} V2.
 #I #K1 #V1 #L2 #d #e * #X #HK1 #HL2 #e
-elim (ltpss_inv_tpss11 … HK1 ?) -HK1 // #K #V #HK1 #HV1 #H destruct
-elim (ldrop_inv_skip1 … HL2 ?) -HL2 // #K2 #V2 #HK2 #HV2 #H destruct
-lapply (ltpss_tpss_trans_eq … HV1 … HK1) -HV1 /3 width=5/
+elim (ltpss_sn_inv_tpss11 … HK1 ?) -HK1 // #K #V #HK1 #HV1 #H destruct
+elim (ldrop_inv_skip1 … HL2 ?) -HL2 // #K2 #V2 #HK2 #HV2 #H destruct /3 width=5/
 qed-.
 
 (* Properties on inverse basic term relocation ******************************)
 
-lemma thin_delift1: ∀L1,L2,d,e. ▼*[d, e] L1 ≡ L2 → ∀V1,V2. L1 ⊢ ▼*[d, e] V1 ≡ V2 →
-                    ∀I. ▼*[d + 1, e] L1.ⓑ{I}V1 ≡ L2.ⓑ{I}V2.
+lemma thin_delift: ∀L1,L2,d,e. ▼*[d, e] L1 ≡ L2 → ∀V1,V2. L1 ⊢ ▼*[d, e] V1 ≡ V2 →
+                   ∀I. ▼*[d + 1, e] L1.ⓑ{I}V1 ≡ L2.ⓑ{I}V2.
 #L1 #L2 #d #e * #L #HL1 #HL2 #V1 #V2 * #V #HV1 #HV2 #I
-elim (ltpss_tpss_conf … HV1 … HL1) -HV1 #V0 #HV10 #HV0
-elim (tpss_inv_lift1_be … HV0 … HL2 … HV2 ? ?) -HV0 // <minus_n_n #X #H1 #H2
-lapply (tpss_inv_refl_O2 … H1) -H1 #H destruct
-lapply (lift_mono … H2 … HV2) -H2 #H destruct /3 width=5/
+elim (ltpss_sn_tpss_conf … HV1 … HL1) -HV1 #V0 #HV10 #HV0
+lapply (tpss_inv_lift1_eq … HV0 … HV2) -HV0 #H destruct
+lapply (ltpss_sn_tpss_trans_eq … HV10 … HL1) -HV10 /3 width=5/
 qed.
 
 lemma thin_delift_tpss_conf_le: ∀L,U1,U2,d,e. L ⊢ U1 ▶* [d, e] U2 →
@@ -47,11 +45,11 @@ lemma thin_delift_tpss_conf_le: ∀L,U1,U2,d,e. L ⊢ U1 ▶* [d, e] U2 →
                                 ∃∃T2. K ⊢ T1 ▶* [d, e] T2 &
                                       L ⊢ ▼*[dd, ee] U2 ≡ T2.
 #L #U1 #U2 #d #e #HU12 #T1 #dd #ee #HUT1 #K * #Y #HLY #HYK #Hdedd
-lapply (delift_ltpss_conf_eq … HUT1 … HLY) -HUT1 #HUT1
-elim (ltpss_tpss_conf … HU12 … HLY) -HU12 #U #HU1 #HU2
-elim (delift_tpss_conf_le … HU1 … HUT1 … HYK ?) -HU1 -HUT1 // -Hdedd #T #HT1 #HUT
-lapply (tpss_delift_trans_eq … HU2 … HUT) -U #HU2T
-lapply (ltpss_delift_trans_eq … HLY … HU2T) -Y /2 width=3/
+lapply (delift_ltpss_sn_conf_eq … HUT1 … HLY) -HUT1 #HUT1
+elim (ltpss_sn_tpss_conf … HU12 … HLY) -HU12 #U #HU1 #HU2
+elim (delift_tpss_conf_le … HU1 … HUT1 … HYK ?) -HU1 -HUT1 -HYK // -Hdedd #T #HT1 #HUT
+lapply (ltpss_sn_delift_trans_eq … HLY … HUT) -HLY -HUT #HUT
+lapply (tpss_delift_trans_eq … HU2 … HUT) -U /2 width=3/
 qed.
 
 lemma thin_delift_tps_conf_le: ∀L,U1,U2,d,e. L ⊢ U1 ▶ [d, e] U2 →
@@ -68,11 +66,11 @@ lemma thin_delift_tpss_conf_le_up: ∀L,U1,U2,d,e. L ⊢ U1 ▶* [d, e] U2 →
                                    ∃∃T2. K ⊢ T1 ▶* [d, dd - d] T2 &
                                          L ⊢ ▼*[dd, ee] U2 ≡ T2.
 #L #U1 #U2 #d #e #HU12 #T1 #dd #ee #HUT1 #K * #Y #HLY #HYK #Hdd #Hdde #Hddee
-lapply (delift_ltpss_conf_eq … HUT1 … HLY) -HUT1 #HUT1
-elim (ltpss_tpss_conf … HU12 … HLY) -HU12 #U #HU1 #HU2
-elim (delift_tpss_conf_le_up … HU1 … HUT1 … HYK ? ? ?) -HU1 -HUT1 // -Hdd -Hdde -Hddee #T #HT1 #HUT
-lapply (tpss_delift_trans_eq … HU2 … HUT) -U #HU2T
-lapply (ltpss_delift_trans_eq … HLY … HU2T) -Y /2 width=3/
+lapply (delift_ltpss_sn_conf_eq … HUT1 … HLY) -HUT1 #HUT1
+elim (ltpss_sn_tpss_conf … HU12 … HLY) -HU12 #U #HU1 #HU2
+elim (delift_tpss_conf_le_up … HU1 … HUT1 … HYK ? ? ?) -HU1 -HUT1 -HYK // -Hdd -Hdde -Hddee #T #HT1 #HUT
+lapply (ltpss_sn_delift_trans_eq … HLY … HUT) -HLY -HUT #HUT
+lapply (tpss_delift_trans_eq … HU2 … HUT) -U /2 width=3/
 qed.
 
 lemma thin_delift_tps_conf_le_up: ∀L,U1,U2,d,e. L ⊢ U1 ▶ [d, e] U2 →
@@ -89,11 +87,11 @@ lemma thin_delift_tpss_conf_be: ∀L,U1,U2,d,e. L ⊢ U1 ▶* [d, e] U2 →
                                 ∃∃T2. K ⊢ T1 ▶* [d, e - ee] T2 &
                                       L ⊢ ▼*[dd, ee] U2 ≡ T2.
 #L #U1 #U2 #d #e #HU12 #T1 #dd #ee #HUT1 #K * #Y #HLY #HYK #Hdd #Hddee
-lapply (delift_ltpss_conf_eq … HUT1 … HLY) -HUT1 #HUT1
-elim (ltpss_tpss_conf … HU12 … HLY) -HU12 #U #HU1 #HU2
-elim (delift_tpss_conf_be … HU1 … HUT1 … HYK ? ?) -HU1 -HUT1 // -Hdd -Hddee #T #HT1 #HUT
-lapply (tpss_delift_trans_eq … HU2 … HUT) -U #HU2T
-lapply (ltpss_delift_trans_eq … HLY … HU2T) -Y /2 width=3/
+lapply (delift_ltpss_sn_conf_eq … HUT1 … HLY) -HUT1 #HUT1
+elim (ltpss_sn_tpss_conf … HU12 … HLY) -HU12 #U #HU1 #HU2
+elim (delift_tpss_conf_be … HU1 … HUT1 … HYK ? ?) -HU1 -HUT1 -HYK // -Hdd -Hddee #T #HT1 #HUT
+lapply (ltpss_sn_delift_trans_eq … HLY … HUT) -HLY -HUT #HUT
+lapply (tpss_delift_trans_eq … HU2 … HUT) -U /2 width=3/
 qed.
 
 lemma thin_delift_tps_conf_be: ∀L,U1,U2,d,e. L ⊢ U1 ▶ [d, e] U2 →