(* *)
(**************************************************************************)
-include "basic_2/static/ssta.ma".
include "basic_2/dynamic/snv.ma".
(* STRATIFIED NATIVE VALIDITY FOR TERMS *************************************)
| #L #W #T #U #l #_ #_ #HTU #_ #_ #_ /3 width=3/ (**) (* auto fails without the last #_ *)
]
qed-.
-(*
+
fact snv_ssta_conf_aux: ∀h,g,L,T. (
- ∀L0,T1,U1,l1. ⦃h, L0⦄ ⊢ T1 •[g, l1] U1 →
- ∀T2,U2,l2. ⦃h, L0⦄ ⊢ T2 •[g, l2] U2 →
- L0 ⊢ T1 ⬌* T2 → ⦃h, L0⦄ ⊩ T1 :[g] → ⦃h, L0⦄ ⊩ T2 :[g] →
- #{L0, T1} < #{L ,T} →
- l1 = l2 ∧ L0 ⊢ U1 ⬌* U2
- ) → (
∀L0,T0. ⦃h, L0⦄ ⊩ T0 :[g] →
∀U0. ⦃h, L0⦄ ⊢ T0 •➡*[g] U0 →
- #{L0, T0} < #{L ,T} →
- ⦃h, L0⦄ ⊩ U0 :[g]
+ #{L0, T0} < #{L ,T} → ⦃h, L0⦄ ⊩ U0 :[g]
) →
∀L0,T0. ⦃h, L0⦄ ⊩ T0 :[g] →
- ∀U0,l. ⦃h, L⦄ ⊢ T0 •[g, l + 1] U0 →
+ ∀U0,l. ⦃h, L0⦄ ⊢ T0 •[g, l + 1] U0 →
L0 = L → T0 = T → ⦃h, L0⦄ ⊩ U0 :[g].
-#h #g #L #T #IH2 #IH1 #L0 #T0 * -L0 -T0
+#h #g #L #T #IH1 #L0 #T0 * -L0 -T0
[
|
|
elim (ssta_inv_appl1 … H) -H #U0 #HTU0 #H destruct
lapply (IH1 … HT0 U0 ? ?) // [ /3 width=2/ ] -HTU0 #HU0
@(snv_appl … HV HU0 HVW HW0) -HV -HU0 -HVW -HW0
-| #L0 #W #T0 #W0 #l0 #HW #HT0 #HTW0 #HW0 #X #l #H #H1 #H2 destruct
- elim (ssta_inv_cast1 … H) -H <minus_plus_m_m #V #U0 #HWV #HTU0 #H destruct
- elim (ssta_mono … HTU0 … HTW0) -HTU0 #H1 #H2
- lapply (injective_plus_l … H1) -H1 #H1 destruct
-(* elim (ssta_fwd_correct … HTW0) <minus_plus_m_m #X0 #HWX0 *)
- lapply (IH1 … HT0 W0 ? ?) -IH1 -HT0 // [ /3 width=2/ ] -HTW0 #HW0
- @(snv_cast … HV HW0)
-
- HVW HW0) -HV -HU0 -HVW -HW0
-*)
+| #L0 #W #T0 #W0 #l0 #_ #HT0 #_ #_ #U0 #l #H #H1 #H2 destruct -W0
+ lapply (ssta_inv_cast1 … H) -H #HTU0
+ lapply (IH1 … HT0 U0 ? ?) -IH1 -HT0 // -W /3 width=2/