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_lpxs.ma;h=2c8e0ccb0bfb1b6a0f7af9d63c3d894352825f03;hp=5bbdcb1801880c446b3f2b315ef151e3c3993aa4;hb=3c7b4071a9ac096b02334c1d47468776b948e2de;hpb=2f6f2b7c01d47d23f61dd48d767bcb37aecdcfea diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx_lpxs.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx_lpxs.ma index 5bbdcb180..2c8e0ccb0 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx_lpxs.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/rsx_lpxs.ma @@ -16,34 +16,34 @@ include "basic_2/rt_computation/lpxs_reqx.ma". include "basic_2/rt_computation/lpxs_lpxs.ma". include "basic_2/rt_computation/rsx_rsx.ma". -(* STRONGLY NORMALIZING REFERRED LOCAL ENV.S FOR UNBOUND RT-TRANSITION ******) +(* STRONGLY NORMALIZING REFERRED LOCAL ENVS FOR EXTENDED RT-TRANSITION ******) -(* Properties with unbound rt-computation for full local environments *******) +(* Properties with extended rt-computation for full local environments ******) (* Basic_2A1: uses: lsx_intro_alt *) -lemma rsx_intro_lpxs (h) (G): - ∀L1,T. (∀L2. ❪G,L1❫ ⊢ ⬈*[h] L2 → (L1 ≛[T] L2 → ⊥) → G ⊢ ⬈*𝐒[h,T] L2) → - G ⊢ ⬈*𝐒[h,T] L1. +lemma rsx_intro_lpxs (G): + ∀L1,T. (∀L2. ❪G,L1❫ ⊢ ⬈* L2 → (L1 ≛[T] L2 → ⊥) → G ⊢ ⬈*𝐒[T] L2) → + G ⊢ ⬈*𝐒[T] L1. /4 width=1 by lpx_lpxs, rsx_intro/ qed-. (* Basic_2A1: uses: lsx_lpxs_trans *) -lemma rsx_lpxs_trans (h) (G): - ∀L1,T. G ⊢ ⬈*𝐒[h,T] L1 → - ∀L2. ❪G,L1❫ ⊢ ⬈*[h] L2 → G ⊢ ⬈*𝐒[h,T] L2. -#h #G #L1 #T #HL1 #L2 #H @(lpxs_ind_dx … H) -L2 +lemma rsx_lpxs_trans (G): + ∀L1,T. G ⊢ ⬈*𝐒[T] L1 → + ∀L2. ❪G,L1❫ ⊢ ⬈* L2 → G ⊢ ⬈*𝐒[T] L2. +#G #L1 #T #HL1 #L2 #H @(lpxs_ind_dx … H) -L2 /2 width=3 by rsx_lpx_trans/ qed-. -(* Eliminators with unbound rt-computation for full local environments ******) +(* Eliminators with extended rt-computation for full local environments *****) -lemma rsx_ind_lpxs_reqx (h) (G) (T) (Q:predicate lenv): - (∀L1. G ⊢ ⬈*𝐒[h,T] L1 → - (∀L2. ❪G,L1❫ ⊢ ⬈*[h] L2 → (L1 ≛[T] L2 → ⊥) → Q L2) → +lemma rsx_ind_lpxs_reqx (G) (T) (Q:predicate lenv): + (∀L1. G ⊢ ⬈*𝐒[T] L1 → + (∀L2. ❪G,L1❫ ⊢ ⬈* L2 → (L1 ≛[T] L2 → ⊥) → Q L2) → Q L1 ) → - ∀L1. G ⊢ ⬈*𝐒[h,T] L1 → - ∀L0. ❪G,L1❫ ⊢ ⬈*[h] L0 → ∀L2. L0 ≛[T] L2 → Q L2. -#h #G #T #Q #IH #L1 #H @(rsx_ind … H) -L1 + ∀L1. G ⊢ ⬈*𝐒[T] L1 → + ∀L0. ❪G,L1❫ ⊢ ⬈* L0 → ∀L2. L0 ≛[T] L2 → Q L2. +#G #T #Q #IH #L1 #H @(rsx_ind … H) -L1 #L1 #HL1 #IH1 #L0 #HL10 #L2 #HL02 @IH -IH /3 width=3 by rsx_lpxs_trans, rsx_reqx_trans/ -HL1 #K2 #HLK2 #HnLK2 lapply (reqx_rneqx_trans … HL02 … HnLK2) -HnLK2 #H @@ -61,24 +61,24 @@ elim (reqx_dec L1 L0 T) #H qed-. (* Basic_2A1: uses: lsx_ind_alt *) -lemma rsx_ind_lpxs (h) (G) (T) (Q:predicate lenv): - (∀L1. G ⊢ ⬈*𝐒[h,T] L1 → - (∀L2. ❪G,L1❫ ⊢ ⬈*[h] L2 → (L1 ≛[T] L2 → ⊥) → Q L2) → +lemma rsx_ind_lpxs (G) (T) (Q:predicate lenv): + (∀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 #IH #L #HL + ∀L. G ⊢ ⬈*𝐒[T] L → Q L. +#G #T #Q #IH #L #HL @(rsx_ind_lpxs_reqx … IH … HL) -IH -HL // (**) (* full auto fails *) qed-. (* Advanced properties ******************************************************) -fact rsx_bind_lpxs_aux (h) (G): - ∀p,I,L1,V. G ⊢ ⬈*𝐒[h,V] L1 → - ∀Y,T. G ⊢ ⬈*𝐒[h,T] Y → - ∀L2. Y = L2.ⓑ[I]V → ❪G,L1❫ ⊢ ⬈*[h] L2 → - G ⊢ ⬈*𝐒[h,ⓑ[p,I]V.T] L2. -#h #G #p #I #L1 #V #H @(rsx_ind_lpxs … H) -L1 +fact rsx_bind_lpxs_aux (G): + ∀p,I,L1,V. G ⊢ ⬈*𝐒[V] L1 → + ∀Y,T. G ⊢ ⬈*𝐒[T] Y → + ∀L2. Y = L2.ⓑ[I]V → ❪G,L1❫ ⊢ ⬈* L2 → + G ⊢ ⬈*𝐒[ⓑ[p,I]V.T] L2. +#G #p #I #L1 #V #H @(rsx_ind_lpxs … H) -L1 #L1 #_ #IHL1 #Y #T #H @(rsx_ind_lpxs … H) -Y #Y #HY #IHY #L2 #H #HL12 destruct @rsx_intro_lpxs #L0 #HL20 @@ -94,18 +94,18 @@ elim (rneqx_inv_bind … H) -H [ -IHY | -HY -IHL1 -HL12 ] qed-. (* Basic_2A1: uses: lsx_bind *) -lemma rsx_bind (h) (G): - ∀p,I,L,V. G ⊢ ⬈*𝐒[h,V] L → - ∀T. G ⊢ ⬈*𝐒[h,T] L.ⓑ[I]V → - G ⊢ ⬈*𝐒[h,ⓑ[p,I]V.T] L. +lemma rsx_bind (G): + ∀p,I,L,V. G ⊢ ⬈*𝐒[V] L → + ∀T. G ⊢ ⬈*𝐒[T] L.ⓑ[I]V → + G ⊢ ⬈*𝐒[ⓑ[p,I]V.T] L. /2 width=3 by rsx_bind_lpxs_aux/ qed. (* Basic_2A1: uses: lsx_flat_lpxs *) -lemma rsx_flat_lpxs (h) (G): - ∀I,L1,V. G ⊢ ⬈*𝐒[h,V] L1 → - ∀L2,T. G ⊢ ⬈*𝐒[h,T] L2 → ❪G,L1❫ ⊢ ⬈*[h] L2 → - G ⊢ ⬈*𝐒[h,ⓕ[I]V.T] L2. -#h #G #I #L1 #V #H @(rsx_ind_lpxs … H) -L1 +lemma rsx_flat_lpxs (G): + ∀I,L1,V. G ⊢ ⬈*𝐒[V] L1 → + ∀L2,T. G ⊢ ⬈*𝐒[T] L2 → ❪G,L1❫ ⊢ ⬈* L2 → + G ⊢ ⬈*𝐒[ⓕ[I]V.T] L2. +#G #I #L1 #V #H @(rsx_ind_lpxs … H) -L1 #L1 #HL1 #IHL1 #L2 #T #H @(rsx_ind_lpxs … H) -L2 #L2 #HL2 #IHL2 #HL12 @rsx_intro_lpxs #L0 #HL20 lapply (lpxs_trans … HL12 … HL20) @@ -120,17 +120,17 @@ lemma rsx_flat_lpxs (h) (G): qed-. (* Basic_2A1: uses: lsx_flat *) -lemma rsx_flat (h) (G): - ∀I,L,V. G ⊢ ⬈*𝐒[h,V] L → - ∀T. G ⊢ ⬈*𝐒[h,T] L → G ⊢ ⬈*𝐒[h,ⓕ[I]V.T] L. +lemma rsx_flat (G): + ∀I,L,V. G ⊢ ⬈*𝐒[V] L → + ∀T. G ⊢ ⬈*𝐒[T] L → G ⊢ ⬈*𝐒[ⓕ[I]V.T] L. /2 width=3 by rsx_flat_lpxs/ qed. -fact rsx_bind_lpxs_void_aux (h) (G): - ∀p,I,L1,V. G ⊢ ⬈*𝐒[h,V] L1 → - ∀Y,T. G ⊢ ⬈*𝐒[h,T] Y → - ∀L2. Y = L2.ⓧ → ❪G,L1❫ ⊢ ⬈*[h] L2 → - G ⊢ ⬈*𝐒[h,ⓑ[p,I]V.T] L2. -#h #G #p #I #L1 #V #H @(rsx_ind_lpxs … H) -L1 +fact rsx_bind_lpxs_void_aux (G): + ∀p,I,L1,V. G ⊢ ⬈*𝐒[V] L1 → + ∀Y,T. G ⊢ ⬈*𝐒[T] Y → + ∀L2. Y = L2.ⓧ → ❪G,L1❫ ⊢ ⬈* L2 → + G ⊢ ⬈*𝐒[ⓑ[p,I]V.T] L2. +#G #p #I #L1 #V #H @(rsx_ind_lpxs … H) -L1 #L1 #_ #IHL1 #Y #T #H @(rsx_ind_lpxs … H) -Y #Y #HY #IHY #L2 #H #HL12 destruct @rsx_intro_lpxs #L0 #HL20 @@ -145,8 +145,8 @@ elim (rneqx_inv_bind_void … H) -H [ -IHY | -HY -IHL1 -HL12 ] ] qed-. -lemma rsx_bind_void (h) (G): - ∀p,I,L,V. G ⊢ ⬈*𝐒[h,V] L → - ∀T. G ⊢ ⬈*𝐒[h,T] L.ⓧ → - G ⊢ ⬈*𝐒[h,ⓑ[p,I]V.T] L. +lemma rsx_bind_void (G): + ∀p,I,L,V. G ⊢ ⬈*𝐒[V] L → + ∀T. G ⊢ ⬈*𝐒[T] L.ⓧ → + G ⊢ ⬈*𝐒[ⓑ[p,I]V.T] L. /2 width=3 by rsx_bind_lpxs_void_aux/ qed.