X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Frsx.ma;h=9d62485711889effa4bf894ec21fe9602b50d582;hp=35e326136b35ddf0c997fdd4b22a9fe466264cd4;hb=3c7b4071a9ac096b02334c1d47468776b948e2de;hpb=2f6f2b7c01d47d23f61dd48d767bcb37aecdcfea diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx.ma index 35e326136..9d6248571 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx.ma @@ -12,81 +12,81 @@ (* *) (**************************************************************************) -include "basic_2/notation/relations/predtysnstrong_4.ma". +include "basic_2/notation/relations/predtysnstrong_3.ma". include "static_2/static/reqx.ma". include "basic_2/rt_transition/lpx.ma". -(* STRONGLY NORMALIZING REFERRED LOCAL ENV.S FOR UNBOUND RT-TRANSITION ******) +(* STRONGLY NORMALIZING REFERRED LOCAL ENVS FOR EXTENDED RT-TRANSITION ******) -definition rsx (h) (G) (T): predicate lenv ≝ - SN … (lpx h G) (reqx T). +definition rsx (G) (T): predicate lenv ≝ + SN … (lpx G) (reqx T). interpretation - "strong normalization for unbound context-sensitive parallel rt-transition on referred entries (local environment)" - 'PRedTySNStrong h T G L = (rsx h G T L). + "strong normalization for extended context-sensitive parallel rt-transition on referred entries (local environment)" + 'PRedTySNStrong G T L = (rsx G T L). (* Basic eliminators ********************************************************) (* Basic_2A1: uses: lsx_ind *) -lemma rsx_ind (h) (G) (T) (Q:predicate …): - (∀L1. G ⊢ ⬈*𝐒[h,T] L1 → - (∀L2. ❪G,L1❫ ⊢ ⬈[h] L2 → (L1 ≛[T] L2 → ⊥) → Q L2) → +lemma rsx_ind (G) (T) (Q:predicate …): + (∀L1. G ⊢ ⬈*𝐒[T] L1 → + (∀L2. ❪G,L1❫ ⊢ ⬈ L2 → (L1 ≛[T] L2 → ⊥) → Q L2) → Q L1 ) → - ∀L. G ⊢ ⬈*𝐒[h,T] L → Q L. -#h #G #T #Q #H0 #L1 #H elim H -L1 + ∀L. G ⊢ ⬈*𝐒[T] L → Q L. +#G #T #Q #H0 #L1 #H elim H -L1 /5 width=1 by SN_intro/ qed-. (* Basic properties *********************************************************) (* Basic_2A1: uses: lsx_intro *) -lemma rsx_intro (h) (G) (T): +lemma rsx_intro (G) (T): ∀L1. - (∀L2. ❪G,L1❫ ⊢ ⬈[h] L2 → (L1 ≛[T] L2 → ⊥) → G ⊢ ⬈*𝐒[h,T] L2) → - G ⊢ ⬈*𝐒[h,T] L1. + (∀L2. ❪G,L1❫ ⊢ ⬈ L2 → (L1 ≛[T] L2 → ⊥) → G ⊢ ⬈*𝐒[T] L2) → + G ⊢ ⬈*𝐒[T] L1. /5 width=1 by SN_intro/ qed. (* Basic forward lemmas *****************************************************) (* Basic_2A1: uses: lsx_fwd_pair_sn lsx_fwd_bind_sn lsx_fwd_flat_sn *) -lemma rsx_fwd_pair_sn (h) (G): - ∀I,L,V,T. G ⊢ ⬈*𝐒[h,②[I]V.T] L → - G ⊢ ⬈*𝐒[h,V] L. -#h #G #I #L #V #T #H +lemma rsx_fwd_pair_sn (G): + ∀I,L,V,T. G ⊢ ⬈*𝐒[②[I]V.T] L → + G ⊢ ⬈*𝐒[V] L. +#G #I #L #V #T #H @(rsx_ind … H) -L #L1 #_ #IHL1 @rsx_intro #L2 #HL12 #HnL12 /4 width=3 by reqx_fwd_pair_sn/ qed-. (* Basic_2A1: uses: lsx_fwd_flat_dx *) -lemma rsx_fwd_flat_dx (h) (G): - ∀I,L,V,T. G ⊢ ⬈*𝐒[h,ⓕ[I]V.T] L → - G ⊢ ⬈*𝐒[h,T] L. -#h #G #I #L #V #T #H +lemma rsx_fwd_flat_dx (G): + ∀I,L,V,T. G ⊢ ⬈*𝐒[ⓕ[I]V.T] L → + G ⊢ ⬈*𝐒[T] L. +#G #I #L #V #T #H @(rsx_ind … H) -L #L1 #_ #IHL1 @rsx_intro #L2 #HL12 #HnL12 /4 width=3 by reqx_fwd_flat_dx/ qed-. -fact rsx_fwd_pair_aux (h) (G): - ∀L. G ⊢ ⬈*𝐒[h,#0] L → - ∀I,K,V. L = K.ⓑ[I]V → G ⊢ ⬈*𝐒[h,V] K. -#h #G #L #H +fact rsx_fwd_pair_aux (G): + ∀L. G ⊢ ⬈*𝐒[#0] L → + ∀I,K,V. L = K.ⓑ[I]V → G ⊢ ⬈*𝐒[V] K. +#G #L #H @(rsx_ind … H) -L #L1 #_ #IH #I #K1 #V #H destruct /5 width=5 by lpx_pair, rsx_intro, reqx_fwd_zero_pair/ qed-. -lemma rsx_fwd_pair (h) (G): - ∀I,K,V. G ⊢ ⬈*𝐒[h,#0] K.ⓑ[I]V → G ⊢ ⬈*𝐒[h,V] K. +lemma rsx_fwd_pair (G): + ∀I,K,V. G ⊢ ⬈*𝐒[#0] K.ⓑ[I]V → G ⊢ ⬈*𝐒[V] K. /2 width=4 by rsx_fwd_pair_aux/ qed-. (* Basic inversion lemmas ***************************************************) (* Basic_2A1: uses: lsx_inv_flat *) -lemma rsx_inv_flat (h) (G): - ∀I,L,V,T. G ⊢ ⬈*𝐒[h,ⓕ[I]V.T] L → - ∧∧ G ⊢ ⬈*𝐒[h,V] L & G ⊢ ⬈*𝐒[h,T] L. +lemma rsx_inv_flat (G): + ∀I,L,V,T. G ⊢ ⬈*𝐒[ⓕ[I]V.T] L → + ∧∧ G ⊢ ⬈*𝐒[V] L & G ⊢ ⬈*𝐒[T] L. /3 width=3 by rsx_fwd_pair_sn, rsx_fwd_flat_dx, conj/ qed-. (* Basic_2A1: removed theorems 9: