X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Fcnv_cpes.ma;h=190165fe69e170eae398f38e1be0c2d58a6d59b3;hp=e2eca5cdfb1a14a210fdeac11fe2fb36817265b3;hb=f308429a0fde273605a2330efc63268b4ac36c99;hpb=87f57ddc367303c33e19c83cd8989cd561f3185b diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpes.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpes.ma index e2eca5cdf..190165fe6 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpes.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpes.ma @@ -21,42 +21,42 @@ include "basic_2/dynamic/cnv_aaa.ma". lemma cnv_appl_cpes (a) (h) (G) (L): ∀n. yinj n < a → - ∀V. ⦃G, L⦄ ⊢ V ![a, h] → ∀T. ⦃G, L⦄ ⊢ T ![a, h] → - ∀W. ⦃G, L⦄ ⊢ V ⬌*[h,1,0] W → - ∀p,U. ⦃G, L⦄ ⊢ T ➡*[n, h] ⓛ{p}W.U → ⦃G, L⦄ ⊢ ⓐV.T ![a, h]. + ∀V. ⦃G,L⦄ ⊢ V ![a,h] → ∀T. ⦃G,L⦄ ⊢ T ![a,h] → + ∀W. ⦃G,L⦄ ⊢ V ⬌*[h,1,0] W → + ∀p,U. ⦃G,L⦄ ⊢ T ➡*[n,h] ⓛ{p}W.U → ⦃G,L⦄ ⊢ ⓐV.T ![a,h]. #a #h #G #L #n #Hn #V #HV #T #HT #W * /4 width=11 by cnv_appl, cpms_cprs_trans, cpms_bind/ qed. lemma cnv_cast_cpes (a) (h) (G) (L): - ∀U. ⦃G, L⦄ ⊢ U ![a, h] → - ∀T. ⦃G, L⦄ ⊢ T ![a, h] → ⦃G, L⦄ ⊢ U ⬌*[h,0,1] T → ⦃G, L⦄ ⊢ ⓝU.T ![a, h]. + ∀U. ⦃G,L⦄ ⊢ U ![a,h] → + ∀T. ⦃G,L⦄ ⊢ T ![a,h] → ⦃G,L⦄ ⊢ U ⬌*[h,0,1] T → ⦃G,L⦄ ⊢ ⓝU.T ![a,h]. #a #h #G #L #U #HU #T #HT * /2 width=3 by cnv_cast/ qed. (* Inversion lemmas with t-bound rt-equivalence for terms *******************) lemma cnv_inv_appl_cpes (a) (h) (G) (L): - ∀V,T. ⦃G, L⦄ ⊢ ⓐV.T ![a, h] → - ∃∃n,p,W,U. yinj n < a & ⦃G, L⦄ ⊢ V ![a, h] & ⦃G, L⦄ ⊢ T ![a, h] & - ⦃G, L⦄ ⊢ V ⬌*[h,1,0] W & ⦃G, L⦄ ⊢ T ➡*[n, h] ⓛ{p}W.U. + ∀V,T. ⦃G,L⦄ ⊢ ⓐV.T ![a,h] → + ∃∃n,p,W,U. yinj n < a & ⦃G,L⦄ ⊢ V ![a,h] & ⦃G,L⦄ ⊢ T ![a,h] & + ⦃G,L⦄ ⊢ V ⬌*[h,1,0] W & ⦃G,L⦄ ⊢ T ➡*[n,h] ⓛ{p}W.U. #a #h #G #L #V #T #H elim (cnv_inv_appl … H) -H #n #p #W #U #Hn #HV #HT #HVW #HTU /3 width=7 by cpms_div, ex5_4_intro/ qed-. lemma cnv_inv_appl_pred_cpes (a) (h) (G) (L): - ∀V,T. ⦃G, L⦄ ⊢ ⓐV.T ![yinj a, h] → - ∃∃p,W,U. ⦃G, L⦄ ⊢ V ![a, h] & ⦃G, L⦄ ⊢ T ![a, h] & - ⦃G, L⦄ ⊢ V ⬌*[h,1,0] W & ⦃G, L⦄ ⊢ T ➡*[↓a, h] ⓛ{p}W.U. + ∀V,T. ⦃G,L⦄ ⊢ ⓐV.T ![yinj a,h] → + ∃∃p,W,U. ⦃G,L⦄ ⊢ V ![a,h] & ⦃G,L⦄ ⊢ T ![a,h] & + ⦃G,L⦄ ⊢ V ⬌*[h,1,0] W & ⦃G,L⦄ ⊢ T ➡*[↓a,h] ⓛ{p}W.U. #a #h #G #L #V #T #H elim (cnv_inv_appl_pred … H) -H #p #W #U #HV #HT #HVW #HTU /3 width=7 by cpms_div, ex4_3_intro/ qed-. lemma cnv_inv_cast_cpes (a) (h) (G) (L): - ∀U,T. ⦃G, L⦄ ⊢ ⓝU.T ![a, h] → - ∧∧ ⦃G, L⦄ ⊢ U ![a, h] & ⦃G, L⦄ ⊢ T ![a, h] & ⦃G, L⦄ ⊢ U ⬌*[h,0,1] T. + ∀U,T. ⦃G,L⦄ ⊢ ⓝU.T ![a,h] → + ∧∧ ⦃G,L⦄ ⊢ U ![a,h] & ⦃G,L⦄ ⊢ T ![a,h] & ⦃G,L⦄ ⊢ U ⬌*[h,0,1] T. #a #h #G #L #U #T #H elim (cnv_inv_cast … H) -H /3 width=3 by cpms_div, and3_intro/