include "ground/lib/star.ma".
include "basic_2/notation/relations/predsubtystar_6.ma".
-include "basic_2/rt_transition/fpbq.ma".
+include "basic_2/rt_transition/fpb.ma".
(* PARALLEL RST-COMPUTATION FOR CLOSURES ************************************)
definition fpbs: tri_relation genv lenv term ≝
- tri_TC … fpbq.
+ tri_TC … fpb.
interpretation
"parallel rst-computation (closure)"
'PRedSubTyStar G1 L1 T1 G2 L2 T2 = (fpbs G1 L1 T1 G2 L2 T2).
-(* Basic eliminators ********************************************************)
-
-lemma fpbs_ind:
- ∀G1,L1,T1. ∀Q:relation3 genv lenv term. Q G1 L1 T1 →
- (∀G,G2,L,L2,T,T2. ❪G1,L1,T1❫ ≥ ❪G,L,T❫ → ❪G,L,T❫ ≽ ❪G2,L2,T2❫ → Q G L T → Q G2 L2 T2) →
- ∀G2,L2,T2. ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫ → Q G2 L2 T2.
-/3 width=8 by tri_TC_star_ind/ qed-.
-
-lemma fpbs_ind_dx:
- ∀G2,L2,T2. ∀Q:relation3 genv lenv term. Q G2 L2 T2 →
- (∀G1,G,L1,L,T1,T. ❪G1,L1,T1❫ ≽ ❪G,L,T❫ → ❪G,L,T❫ ≥ ❪G2,L2,T2❫ → Q G L T → Q G1 L1 T1) →
- ∀G1,L1,T1. ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫ → Q G1 L1 T1.
-/3 width=8 by tri_TC_star_ind_dx/ qed-.
(* Basic properties *********************************************************)
-lemma fpbs_refl:
- tri_reflexive … fpbs.
-/2 width=1 by tri_inj/ qed.
-
-lemma fpbq_fpbs:
- ∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ≽ ❪G2,L2,T2❫ →
- ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫.
+(* Basic_2A1: uses: fpbq_fpbs *)
+lemma fpb_fpbs:
+ ∀G1,G2,L1,L2,T1,T2. ❨G1,L1,T1❩ ≽ ❨G2,L2,T2❩ →
+ ❨G1,L1,T1❩ ≥ ❨G2,L2,T2❩.
/2 width=1 by tri_inj/ qed.
lemma fpbs_strap1:
- â\88\80G1,G,G2,L1,L,L2,T1,T,T2. â\9dªG1,L1,T1â\9d« â\89¥ â\9dªG,L,Tâ\9d« →
- â\9dªG,L,Tâ\9d« â\89½ â\9dªG2,L2,T2â\9d« â\86\92 â\9dªG1,L1,T1â\9d« â\89¥ â\9dªG2,L2,T2â\9d«.
+ â\88\80G1,G,G2,L1,L,L2,T1,T,T2. â\9d¨G1,L1,T1â\9d© â\89¥ â\9d¨G,L,Tâ\9d© →
+ â\9d¨G,L,Tâ\9d© â\89½ â\9d¨G2,L2,T2â\9d© â\86\92 â\9d¨G1,L1,T1â\9d© â\89¥ â\9d¨G2,L2,T2â\9d©.
/2 width=5 by tri_step/ qed-.
lemma fpbs_strap2:
- â\88\80G1,G,G2,L1,L,L2,T1,T,T2. â\9dªG1,L1,T1â\9d« â\89½ â\9dªG,L,Tâ\9d« →
- â\9dªG,L,Tâ\9d« â\89¥ â\9dªG2,L2,T2â\9d« â\86\92 â\9dªG1,L1,T1â\9d« â\89¥ â\9dªG2,L2,T2â\9d«.
+ â\88\80G1,G,G2,L1,L,L2,T1,T,T2. â\9d¨G1,L1,T1â\9d© â\89½ â\9d¨G,L,Tâ\9d© →
+ â\9d¨G,L,Tâ\9d© â\89¥ â\9d¨G2,L2,T2â\9d© â\86\92 â\9d¨G1,L1,T1â\9d© â\89¥ â\9d¨G2,L2,T2â\9d©.
/2 width=5 by tri_TC_strap/ qed-.
-(* Basic_2A1: uses: lleq_fpbs fleq_fpbs *)
-lemma feqx_fpbs:
- ∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ≛ ❪G2,L2,T2❫ → ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫.
-/3 width=1 by fpbq_fpbs, fpbq_feqx/ qed.
-
-(* Basic_2A1: uses: fpbs_lleq_trans *)
-lemma fpbs_feqx_trans:
- ∀G1,G,L1,L,T1,T. ❪G1,L1,T1❫ ≥ ❪G,L,T❫ →
- ∀G2,L2,T2. ❪G,L,T❫ ≛ ❪G2,L2,T2❫ → ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫.
-/3 width=9 by fpbs_strap1, fpbq_feqx/ qed-.
-
-(* Basic_2A1: uses: lleq_fpbs_trans *)
-lemma feqx_fpbs_trans:
- ∀G,G2,L,L2,T,T2. ❪G,L,T❫ ≥ ❪G2,L2,T2❫ →
- ∀G1,L1,T1. ❪G1,L1,T1❫ ≛ ❪G,L,T❫ → ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫.
-/3 width=5 by fpbs_strap2, fpbq_feqx/ qed-.
-
-lemma teqx_reqx_lpx_fpbs:
- ∀T1,T2. T1 ≛ T2 → ∀L1,L0. L1 ≛[T2] L0 →
- ∀G,L2. ❪G,L0❫ ⊢ ⬈ L2 → ❪G,L1,T1❫ ≥ ❪G,L2,T2❫.
-/4 width=5 by feqx_fpbs, fpbs_strap1, fpbq_lpx, feqx_intro_dx/ qed.
-
(* Basic_2A1: removed theorems 3:
fpb_fpbsa_trans fpbs_fpbsa fpbsa_inv_fpbs
*)