X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fsubstitution%2Flpss_cpss.ma;h=c9c17fa19d788f5b7db566e95d7386ab35af64be;hb=d4a90dfb8d8a56012928a600ea2f6bd4758b51f6;hp=2a418d759dd0b7d280682c12725157aef00f6171;hpb=0679e5d5a305a43a8b4b01a5ac4c7caffacc73b9;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/substitution/lpss_cpss.ma b/matita/matita/contribs/lambdadelta/basic_2/substitution/lpss_cpss.ma
index 2a418d759..c9c17fa19 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/substitution/lpss_cpss.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/substitution/lpss_cpss.ma
@@ -13,133 +13,12 @@
 (**************************************************************************)
 
 include "basic_2/grammar/lpx_sn_lpx_sn.ma".
-include "basic_2/relocation/fsup.ma".
 include "basic_2/substitution/lpss_ldrop.ma".
 
 (* SN PARALLEL SUBSTITUTION FOR LOCAL ENVIRONMENTS **************************)
 
 (* Main properties on context-sensitive parallel substitution for terms *****)
 
-fact cpss_conf_lpss_atom_atom:
-   ∀I,L1,L2. ∃∃T. L1 ⊢ ⓪{I} ▶* T & L2 ⊢ ⓪{I} ▶* T.
-/2 width=3/ qed-.
-
-fact cpss_conf_lpss_atom_delta:
-   ∀L0,i. (
-      ∀L,T.♯{L, T} < ♯{L0, #i} →
-      ∀T1. L ⊢ T ▶* T1 → ∀T2. L ⊢ T ▶* T2 →
-      ∀L1. L ⊢ ▶* L1 → ∀L2. L ⊢ ▶* L2 →
-      ∃∃T0. L1 ⊢ T1 ▶* T0 & L2 ⊢ T2 ▶* T0
-   ) →
-   ∀K0,V0. ⇩[O, i] L0 ≡ K0.ⓓV0 →
-   ∀V2. K0 ⊢ V0 ▶* V2 → ∀T2. ⇧[O, i + 1] V2 ≡ T2 →
-   ∀L1. L0 ⊢ ▶* L1 → ∀L2. L0 ⊢ ▶* L2 →
-   ∃∃T. L1 ⊢ #i ▶* T & L2 ⊢ T2 ▶* T.
-#L0 #i #IH #K0 #V0 #HLK0 #V2 #HV02 #T2 #HVT2 #L1 #HL01 #L2 #HL02
-elim (lpss_ldrop_conf … HLK0 … HL01) -HL01 #X1 #H1 #HLK1
-elim (lpss_inv_pair1 … H1) -H1 #K1 #V1 #HK01 #HV01 #H destruct
-elim (lpss_ldrop_conf … HLK0 … HL02) -HL02 #X2 #H2 #HLK2
-elim (lpss_inv_pair1 … H2) -H2 #K2 #W2 #HK02 #_ #H destruct
-lapply (ldrop_fwd_ldrop2 … HLK2) -W2 #HLK2
-lapply (ldrop_pair2_fwd_fw … HLK0 (#i)) -HLK0 #HLK0
-elim (IH … HLK0 … HV01 … HV02 … HK01 … HK02) -L0 -K0 -V0 #V #HV1 #HV2
-elim (lift_total V 0 (i+1)) #T #HVT
-lapply (cpss_lift … HV2 … HLK2 … HVT2 … HVT) -K2 -V2 /3 width=6/
-qed-.
-
-fact cpss_conf_lpss_delta_delta:
-   ∀L0,i. (
-      ∀L,T.♯{L, T} < ♯{L0, #i} →
-      ∀T1. L ⊢ T ▶* T1 → ∀T2. L ⊢ T ▶* T2 →
-      ∀L1. L ⊢ ▶* L1 → ∀L2. L ⊢ ▶* L2 →
-      ∃∃T0. L1 ⊢ T1 ▶* T0 & L2 ⊢ T2 ▶* T0
-   ) →
-   ∀K0,V0. ⇩[O, i] L0 ≡ K0.ⓓV0 →
-   ∀V1. K0 ⊢ V0 ▶* V1 → ∀T1. ⇧[O, i + 1] V1 ≡ T1 →
-   ∀KX,VX. ⇩[O, i] L0 ≡ KX.ⓓVX →
-   ∀V2. KX ⊢ VX ▶* V2 → ∀T2. ⇧[O, i + 1] V2 ≡ T2 →
-   ∀L1. L0 ⊢ ▶* L1 → ∀L2. L0 ⊢ ▶* L2 →
-   ∃∃T. L1 ⊢ T1 ▶* T & L2 ⊢ T2 ▶* T.
-#L0 #i #IH #K0 #V0 #HLK0 #V1 #HV01 #T1 #HVT1
-#KX #VX #H #V2 #HV02 #T2 #HVT2 #L1 #HL01 #L2 #HL02
-lapply (ldrop_mono … H … HLK0) -H #H destruct
-elim (lpss_ldrop_conf … HLK0 … HL01) -HL01 #X1 #H1 #HLK1
-elim (lpss_inv_pair1 … H1) -H1 #K1 #W1 #HK01 #_ #H destruct
-lapply (ldrop_fwd_ldrop2 … HLK1) -W1 #HLK1
-elim (lpss_ldrop_conf … HLK0 … HL02) -HL02 #X2 #H2 #HLK2
-elim (lpss_inv_pair1 … H2) -H2 #K2 #W2 #HK02 #_ #H destruct
-lapply (ldrop_fwd_ldrop2 … HLK2) -W2 #HLK2
-lapply (ldrop_pair2_fwd_fw … HLK0 (#i)) -HLK0 #HLK0
-elim (IH … HLK0 … HV01 … HV02 … HK01 … HK02) -L0 -K0 -V0 #V #HV1 #HV2
-elim (lift_total V 0 (i+1)) #T #HVT
-lapply (cpss_lift … HV1 … HLK1 … HVT1 … HVT) -K1 -V1
-lapply (cpss_lift … HV2 … HLK2 … HVT2 … HVT) -K2 -V2 -V /2 width=3/
-qed-.
-
-fact cpss_conf_lpss_bind_bind:
-   ∀a,I,L0,V0,T0. (
-      ∀L,T.♯{L,T} < ♯{L0,ⓑ{a,I}V0.T0} →
-      ∀T1. L ⊢ T ▶* T1 → ∀T2. L ⊢ T ▶* T2 →
-      ∀L1. L ⊢ ▶* L1 → ∀L2. L ⊢ ▶* L2 →
-      ∃∃T0. L1 ⊢ T1 ▶* T0 & L2 ⊢ T2 ▶* T0
-   ) →
-   ∀V1. L0 ⊢ V0 ▶* V1 → ∀T1. L0.ⓑ{I}V0 ⊢ T0 ▶* T1 →
-   ∀V2. L0 ⊢ V0 ▶* V2 → ∀T2. L0.ⓑ{I}V0 ⊢ T0 ▶* T2 →
-   ∀L1. L0 ⊢ ▶* L1 → ∀L2. L0 ⊢ ▶* L2 →
-   ∃∃T. L1 ⊢ ⓑ{a,I}V1.T1 ▶* T & L2 ⊢ ⓑ{a,I}V2.T2 ▶* T.
-#a #I #L0 #V0 #T0 #IH #V1 #HV01 #T1 #HT01
-#V2 #HV02 #T2 #HT02 #L1 #HL01 #L2 #HL02
-elim (IH … HV01 … HV02 … HL01 … HL02) //
-elim (IH … HT01 … HT02 (L1.ⓑ{I}V1) … (L2.ⓑ{I}V2)) -IH // /2 width=1/ /3 width=5/
-qed-.
-
-fact cpss_conf_lpss_flat_flat:
-   ∀I,L0,V0,T0. (
-      ∀L,T.♯{L,T} < ♯{L0,ⓕ{I}V0.T0} →
-      ∀T1. L ⊢ T ▶* T1 → ∀T2. L ⊢ T ▶* T2 →
-      ∀L1. L ⊢ ▶* L1 → ∀L2. L ⊢ ▶* L2 →
-      ∃∃T0. L1 ⊢ T1 ▶* T0 & L2 ⊢ T2 ▶* T0
-   ) →
-   ∀V1. L0 ⊢ V0 ▶* V1 → ∀T1. L0 ⊢ T0 ▶* T1 →
-   ∀V2. L0 ⊢ V0 ▶* V2 → ∀T2. L0 ⊢ T0 ▶* T2 →
-   ∀L1. L0 ⊢ ▶* L1 → ∀L2. L0 ⊢ ▶* L2 →
-   ∃∃T. L1 ⊢ ⓕ{I}V1.T1 ▶* T & L2 ⊢ ⓕ{I}V2.T2 ▶* T.
-#I #L0 #V0 #T0 #IH #V1 #HV01 #T1 #HT01
-#V2 #HV02 #T2 #HT02 #L1 #HL01 #L2 #HL02
-elim (IH … HV01 … HV02 … HL01 … HL02) //
-elim (IH … HT01 … HT02 … HL01 … HL02) // /3 width=5/
-qed-.
-
-theorem cpss_conf_lpss: lpx_sn_confluent cpss cpss.
-#L0 #T0 @(f2_ind … fw … L0 T0) -L0 -T0 #n #IH #L0 * [|*]
-[ #I0 #Hn #T1 #H1 #T2 #H2 #L1 #HL01 #L2 #HL02 destruct
-  elim (cpss_inv_atom1 … H1) -H1
-  elim (cpss_inv_atom1 … H2) -H2
-  [ #H2 #H1 destruct
-    /2 width=1 by cpss_conf_lpss_atom_atom/
-  | * #K0 #V0 #V2 #i2 #HLK0 #HV02 #HVT2 #H2 #H1 destruct
-    /3 width=10 by cpss_conf_lpss_atom_delta/
-  | #H2 * #K0 #V0 #V1 #i1 #HLK0 #HV01 #HVT1 #H1 destruct
-    /4 width=10 by ex2_commute, cpss_conf_lpss_atom_delta/
-  | * #X #Y #V2 #z #H #HV02 #HVT2 #H2
-    * #K0 #V0 #V1 #i #HLK0 #HV01 #HVT1 #H1 destruct
-    /3 width=17 by cpss_conf_lpss_delta_delta/
-  ]
-| #a #I #V0 #T0 #Hn #X1 #H1 #X2 #H2 #L1 #HL01 #L2 #HL02 destruct
-  elim (cpss_inv_bind1 … H1) -H1 #V1 #T1 #HV01 #HT01 #H destruct
-  elim (cpss_inv_bind1 … H2) -H2 #V2 #T2 #HV02 #HT02 #H destruct
-  /3 width=10 by cpss_conf_lpss_bind_bind/
-| #I #V0 #T0 #Hn #X1 #H1 #X2 #H2 #L1 #HL01 #L2 #HL02 destruct
-  elim (cpss_inv_flat1 … H1) -H1 #V1 #T1 #HV01 #HT01 #H destruct
-  elim (cpss_inv_flat1 … H2) -H2 #V2 #T2 #HV02 #HT02 #H destruct
-  /3 width=10 by cpss_conf_lpss_flat_flat/
-]
-qed-.
-
-(* Basic_1: was only: subst1_confluence_eq *)
-theorem cpss_conf: ∀L. confluent … (cpss L).
-/2 width=6 by cpss_conf_lpss/ qed-.
-
 theorem cpss_trans_lpss: lpx_sn_transitive cpss cpss.
 #L1 #T1 @(f2_ind … fw … L1 T1) -L1 -T1 #n #IH #L1 * [|*]
 [ #I #Hn #T #H1 #L2 #HL12 #T2 #HT2 destruct
@@ -174,30 +53,7 @@ theorem cpss_trans: ∀L. Transitive … (cpss L).
 
 (* Properties on context-sensitive parallel substitution for terms **********)
 
-(* Basic_1: was only: subst1_subst1_back *)
-lemma lpss_cpss_conf_dx: ∀L0,T0,T1. L0 ⊢ T0 ▶* T1 → ∀L1. L0 ⊢ ▶* L1 →
-                         ∃∃T. L1 ⊢ T0 ▶* T & L1 ⊢ T1 ▶* T.
-#L0 #T0 #T1 #HT01 #L1 #HL01
-elim (cpss_conf_lpss … HT01 T0 … HL01 … HL01) // -L0 /2 width=3/
-qed-.
-
-lemma lpss_cpss_conf_sn: ∀L0,T0,T1. L0 ⊢ T0 ▶* T1 → ∀L1. L0 ⊢ ▶* L1 →
-                         ∃∃T. L1 ⊢ T0 ▶* T & L0 ⊢ T1 ▶* T.
-#L0 #T0 #T1 #HT01 #L1 #HL01
-elim (cpss_conf_lpss … HT01 T0 … L0 … HL01) // -HT01 -HL01 /2 width=3/
-qed-.
-
 (* Basic_1: was only: subst1_subst1 *)
 lemma lpss_cpss_trans: ∀L1,L2. L1 ⊢ ▶* L2 →
                        ∀T1,T2. L2 ⊢ T1 ▶* T2 → L1 ⊢ T1 ▶* T2.
 /2 width=5 by cpss_trans_lpss/ qed-.
-
-lemma fsup_cpss_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_lpss_trans … HLK1 … HK1) -HLK1 -HK1 #L2 #HL12 #HL2K
-lapply (cpss_lift … HT1 … HL2K … HTU1 … HTU) -HT1 -HTU1 /3 width=11/
-qed-.