X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Frelocation%2Flifts_vector.ma;h=a5310b63dce69cde3da9653a854b652b927ea979;hp=f424d38eae4842054661e8da956375eedb2b7fe2;hb=25c634037771dff0138e5e8e3d4378183ff49b86;hpb=bd53c4e895203eb049e75434f638f26b5a161a2b diff --git a/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_vector.ma b/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_vector.ma index f424d38ea..a5310b63d 100644 --- a/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_vector.ma +++ b/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_vector.ma @@ -18,34 +18,35 @@ include "static_2/relocation/lifts.ma". (* GENERIC RELOCATION FOR TERM VECTORS *************************************) (* Basic_2A1: includes: liftv_nil liftv_cons *) -inductive liftsv (f:rtmap): relation (list term) ≝ +inductive liftsv (f): relation … ≝ | liftsv_nil : liftsv f (Ⓔ) (Ⓔ) | liftsv_cons: ∀T1s,T2s,T1,T2. ⇧*[f] T1 ≘ T2 → liftsv f T1s T2s → liftsv f (T1 ⨮ T1s) (T2 ⨮ T2s) . -interpretation "uniform relocation (term vector)" - 'RLiftStar i T1s T2s = (liftsv (uni i) T1s T2s). - interpretation "generic relocation (term vector)" 'RLiftStar f T1s T2s = (liftsv f T1s T2s). +interpretation "uniform relocation (term vector)" + 'RLift i T1s T2s = (liftsv (uni i) T1s T2s). + (* Basic inversion lemmas ***************************************************) -fact liftsv_inv_nil1_aux: ∀f,X,Y. ⇧*[f] X ≘ Y → X = Ⓔ → Y = Ⓔ. +fact liftsv_inv_nil1_aux (f): + ∀X,Y. ⇧*[f] X ≘ Y → X = Ⓔ → Y = Ⓔ. #f #X #Y * -X -Y // #T1s #T2s #T1 #T2 #_ #_ #H destruct qed-. (* Basic_2A1: includes: liftv_inv_nil1 *) -lemma liftsv_inv_nil1: ∀f,Y. ⇧*[f] Ⓔ ≘ Y → Y = Ⓔ. +lemma liftsv_inv_nil1 (f): + ∀Y. ⇧*[f] Ⓔ ≘ Y → Y = Ⓔ. /2 width=5 by liftsv_inv_nil1_aux/ qed-. -fact liftsv_inv_cons1_aux: ∀f:rtmap. ∀X,Y. ⇧*[f] X ≘ Y → - ∀T1,T1s. X = T1 ⨮ T1s → - ∃∃T2,T2s. ⇧*[f] T1 ≘ T2 & ⇧*[f] T1s ≘ T2s & - Y = T2 ⨮ T2s. +fact liftsv_inv_cons1_aux (f): + ∀X,Y. ⇧*[f] X ≘ Y → ∀T1,T1s. X = T1 ⨮ T1s → + ∃∃T2,T2s. ⇧*[f] T1 ≘ T2 & ⇧*[f] T1s ≘ T2s & Y = T2 ⨮ T2s. #f #X #Y * -X -Y [ #U1 #U1s #H destruct | #T1s #T2s #T1 #T2 #HT12 #HT12s #U1 #U1s #H destruct /2 width=5 by ex3_2_intro/ @@ -53,38 +54,39 @@ fact liftsv_inv_cons1_aux: ∀f:rtmap. ∀X,Y. ⇧*[f] X ≘ Y → qed-. (* Basic_2A1: includes: liftv_inv_cons1 *) -lemma liftsv_inv_cons1: ∀f:rtmap. ∀T1,T1s,Y. ⇧*[f] T1 ⨮ T1s ≘ Y → - ∃∃T2,T2s. ⇧*[f] T1 ≘ T2 & ⇧*[f] T1s ≘ T2s & - Y = T2 ⨮ T2s. +lemma liftsv_inv_cons1 (f): + ∀T1,T1s,Y. ⇧*[f] T1 ⨮ T1s ≘ Y → + ∃∃T2,T2s. ⇧*[f] T1 ≘ T2 & ⇧*[f] T1s ≘ T2s & Y = T2 ⨮ T2s. /2 width=3 by liftsv_inv_cons1_aux/ qed-. -fact liftsv_inv_nil2_aux: ∀f,X,Y. ⇧*[f] X ≘ Y → Y = Ⓔ → X = Ⓔ. +fact liftsv_inv_nil2_aux (f): + ∀X,Y. ⇧*[f] X ≘ Y → Y = Ⓔ → X = Ⓔ. #f #X #Y * -X -Y // #T1s #T2s #T1 #T2 #_ #_ #H destruct qed-. -lemma liftsv_inv_nil2: ∀f,X. ⇧*[f] X ≘ Ⓔ → X = Ⓔ. +lemma liftsv_inv_nil2 (f): + ∀X. ⇧*[f] X ≘ Ⓔ → X = Ⓔ. /2 width=5 by liftsv_inv_nil2_aux/ qed-. -fact liftsv_inv_cons2_aux: ∀f:rtmap. ∀X,Y. ⇧*[f] X ≘ Y → - ∀T2,T2s. Y = T2 ⨮ T2s → - ∃∃T1,T1s. ⇧*[f] T1 ≘ T2 & ⇧*[f] T1s ≘ T2s & - X = T1 ⨮ T1s. +fact liftsv_inv_cons2_aux (f): + ∀X,Y. ⇧*[f] X ≘ Y → ∀T2,T2s. Y = T2 ⨮ T2s → + ∃∃T1,T1s. ⇧*[f] T1 ≘ T2 & ⇧*[f] T1s ≘ T2s & X = T1 ⨮ T1s. #f #X #Y * -X -Y [ #U2 #U2s #H destruct | #T1s #T2s #T1 #T2 #HT12 #HT12s #U2 #U2s #H destruct /2 width=5 by ex3_2_intro/ ] qed-. -lemma liftsv_inv_cons2: ∀f:rtmap. ∀X,T2,T2s. ⇧*[f] X ≘ T2 ⨮ T2s → - ∃∃T1,T1s. ⇧*[f] T1 ≘ T2 & ⇧*[f] T1s ≘ T2s & - X = T1 ⨮ T1s. +lemma liftsv_inv_cons2 (f): + ∀X,T2,T2s. ⇧*[f] X ≘ T2 ⨮ T2s → + ∃∃T1,T1s. ⇧*[f] T1 ≘ T2 & ⇧*[f] T1s ≘ T2s & X = T1 ⨮ T1s. /2 width=3 by liftsv_inv_cons2_aux/ qed-. (* Basic_1: was: lifts1_flat (left to right) *) -lemma lifts_inv_applv1: ∀f:rtmap. ∀V1s,U1,T2. ⇧*[f] Ⓐ V1s.U1 ≘ T2 → - ∃∃V2s,U2. ⇧*[f] V1s ≘ V2s & ⇧*[f] U1 ≘ U2 & - T2 = Ⓐ V2s.U2. +lemma lifts_inv_applv1 (f): + ∀V1s,U1,T2. ⇧*[f] Ⓐ V1s.U1 ≘ T2 → + ∃∃V2s,U2. ⇧*[f] V1s ≘ V2s & ⇧*[f] U1 ≘ U2 & T2 = Ⓐ V2s.U2. #f #V1s elim V1s -V1s [ /3 width=5 by ex3_2_intro, liftsv_nil/ | #V1 #V1s #IHV1s #T1 #X #H elim (lifts_inv_flat1 … H) -H @@ -93,9 +95,9 @@ lemma lifts_inv_applv1: ∀f:rtmap. ∀V1s,U1,T2. ⇧*[f] Ⓐ V1s.U1 ≘ T2 → ] qed-. -lemma lifts_inv_applv2: ∀f:rtmap. ∀V2s,U2,T1. ⇧*[f] T1 ≘ Ⓐ V2s.U2 → - ∃∃V1s,U1. ⇧*[f] V1s ≘ V2s & ⇧*[f] U1 ≘ U2 & - T1 = Ⓐ V1s.U1. +lemma lifts_inv_applv2 (f): + ∀V2s,U2,T1. ⇧*[f] T1 ≘ Ⓐ V2s.U2 → + ∃∃V1s,U1. ⇧*[f] V1s ≘ V2s & ⇧*[f] U1 ≘ U2 & T1 = Ⓐ V1s.U1. #f #V2s elim V2s -V2s [ /3 width=5 by ex3_2_intro, liftsv_nil/ | #V2 #V2s #IHV2s #T2 #X #H elim (lifts_inv_flat2 … H) -H @@ -107,7 +109,8 @@ qed-. (* Basic properties *********************************************************) (* Basic_2A1: includes: liftv_total *) -lemma liftsv_total: ∀f. ∀T1s:list term. ∃T2s. ⇧*[f] T1s ≘ T2s. +lemma liftsv_total (f): + ∀T1s. ∃T2s. ⇧*[f] T1s ≘ T2s. #f #T1s elim T1s -T1s [ /2 width=2 by liftsv_nil, ex_intro/ | #T1 #T1s * #T2s #HT12s @@ -116,15 +119,15 @@ lemma liftsv_total: ∀f. ∀T1s:list term. ∃T2s. ⇧*[f] T1s ≘ T2s. qed-. (* Basic_1: was: lifts1_flat (right to left) *) -lemma lifts_applv: ∀f:rtmap. ∀V1s,V2s. ⇧*[f] V1s ≘ V2s → - ∀T1,T2. ⇧*[f] T1 ≘ T2 → - ⇧*[f] Ⓐ V1s.T1 ≘ Ⓐ V2s.T2. +lemma lifts_applv (f): + ∀V1s,V2s. ⇧*[f] V1s ≘ V2s → ∀T1,T2. ⇧*[f] T1 ≘ T2 → + ⇧*[f] Ⓐ V1s.T1 ≘ Ⓐ V2s.T2. #f #V1s #V2s #H elim H -V1s -V2s /3 width=1 by lifts_flat/ qed. -lemma liftsv_split_trans: ∀f,T1s,T2s. ⇧*[f] T1s ≘ T2s → - ∀f1,f2. f2 ⊚ f1 ≘ f → - ∃∃Ts. ⇧*[f1] T1s ≘ Ts & ⇧*[f2] Ts ≘ T2s. +lemma liftsv_split_trans (f): + ∀T1s,T2s. ⇧*[f] T1s ≘ T2s → ∀f1,f2. f2 ⊚ f1 ≘ f → + ∃∃Ts. ⇧*[f1] T1s ≘ Ts & ⇧*[f2] Ts ≘ T2s. #f #T1s #T2s #H elim H -T1s -T2s [ /2 width=3 by liftsv_nil, ex2_intro/ | #T1s #T2s #T1 #T2 #HT12 #_ #IH #f1 #f2 #Hf