X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Fcnv_fsb.ma;h=ec7531be375924e5537eb2a24ace243797d18dc0;hb=11093619476326238c2ef9d2dfe9150b8c9bc920;hp=38103031746d12830bc3782a20bbb91629849eb8;hpb=bd53c4e895203eb049e75434f638f26b5a161a2b;p=helm.git diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_fsb.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_fsb.ma index 381030317..ec7531be3 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_fsb.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_fsb.ma @@ -22,20 +22,20 @@ include "basic_2/dynamic/cnv_aaa.ma". (* Note: this is the "big tree" theorem *) (* Basic_2A1: uses: snv_fwd_fsb *) lemma cnv_fwd_fsb (h) (a): - ∀G,L,T. ❪G,L❫ ⊢ T ![h,a] → ≥[h] 𝐒❪G,L,T❫. + ∀G,L,T. ❨G,L❩ ⊢ T ![h,a] → ≥𝐒 ❨G,L,T❩. #h #a #G #L #T #H elim (cnv_fwd_aaa … H) -H /2 width=2 by aaa_fsb/ qed-. (* Forward lemmas with strongly rt-normalizing terms ************************) lemma cnv_fwd_csx (h) (a): - ∀G,L,T. ❪G,L❫ ⊢ T ![h,a] → ❪G,L❫ ⊢ ⬈*[h] 𝐒❪T❫. + ∀G,L,T. ❨G,L❩ ⊢ T ![h,a] → ❨G,L❩ ⊢ ⬈*𝐒 T. #h #a #G #L #T #H -/3 width=2 by cnv_fwd_fsb, fsb_inv_csx/ +/3 width=3 by cnv_fwd_fsb, fsb_inv_csx/ qed-. (* Inversion lemmas with proper parallel rst-computation for closures *******) lemma cnv_fpbg_refl_false (h) (a): - ∀G,L,T. ❪G,L❫ ⊢ T ![h,a] → ❪G,L,T❫ >[h] ❪G,L,T❫ → ⊥. + ∀G,L,T. ❨G,L❩ ⊢ T ![h,a] → ❨G,L,T❩ > ❨G,L,T❩ → ⊥. /3 width=7 by cnv_fwd_fsb, fsb_fpbg_refl_false/ qed-.