(* *)
(**************************************************************************)
-include "basic_2/rt_transition/fpb_feqx.ma".
+include "static_2/static/feqg_fqup.ma".
+include "static_2/static/feqg_feqg.ma".
+include "basic_2/rt_transition/fpb_feqg.ma".
include "basic_2/rt_transition/fpbq.ma".
(* PARALLEL RST-TRANSITION FOR CLOSURES *************************************)
qed.
(* Basic_2A1: fpb_fpbq_alt *)
-lemma fpb_fpbq_fneqx:
+lemma fpb_fpbq_fneqx (S):
∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ≻ ❪G2,L2,T2❫ →
- ∧∧ ❪G1,L1,T1❫ ≽ ❪G2,L2,T2❫ & (❪G1,L1,T1❫ ≛ ❪G2,L2,T2❫ → ⊥).
-/3 width=10 by fpb_fpbq, fpb_inv_feqx, conj/ qed-.
+ ∧∧ ❪G1,L1,T1❫ ≽ ❪G2,L2,T2❫ & (❪G1,L1,T1❫ ≛[S] ❪G2,L2,T2❫ → ⊥).
+/3 width=10 by fpb_fpbq, fpb_inv_feqg, conj/ qed-.
(* Inversrion lemmas with proper parallel rst-transition for closures *******)
-(* Basic_2A1: uses: fpbq_ind_alt *)
-lemma fpbq_inv_fpb:
+(* Basic_2A1: fpbq_inv_fpb_alt *)
+lemma fpbq_fneqx_inv_fpb:
∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ≽ ❪G2,L2,T2❫ →
- ∨∨ ❪G1,L1,T1❫ ≛ ❪G2,L2,T2❫
- | ❪G1,L1,T1❫ ≻ ❪G2,L2,T2❫.
+ (❪G1,L1,T1❫ ≅ ❪G2,L2,T2❫ → ⊥) → ❪G1,L1,T1❫ ≻ ❪G2,L2,T2❫.
#G1 #G2 #L1 #L2 #T1 #T2 * -G2 -L2 -T2
[ #G2 #L2 #T2 * [2: * #H1 #H2 #H3 destruct ]
- /3 width=1 by fpb_fqu, feqx_intro_sn, or_intror, or_introl/
-| #T2 #H elim (teqx_dec T1 T2)
- /4 width=1 by fpb_cpx, feqx_intro_sn, or_intror, or_introl/
-| #L2 elim (reqx_dec L1 L2 T1)
- /4 width=1 by fpb_lpx, feqx_intro_sn, or_intror, or_introl/
-| /2 width=1 by or_introl/
+ [ #H elim H -H /2 width=1 by feqg_refl/
+ | /2 width=1 by fpb_fqu/
+ ]
+| /4 width=1 by fpb_cpx, teqg_feqg/
+| /4 width=1 by fpb_lpx, feqg_intro_sn/
+| #G2 #L2 #T2 #H12 #Hn12
+ elim Hn12 -Hn12 //
]
qed-.
-(* Basic_2A1: fpbq_inv_fpb_alt *)
-lemma fpbq_fneqx_inv_fpb:
+(* Basic_2A1: uses: fpbq_ind_alt *)
+lemma fpbq_inv_fpb:
∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ≽ ❪G2,L2,T2❫ →
- (❪G1,L1,T1❫ ≛ ❪G2,L2,T2❫ → ⊥) → ❪G1,L1,T1❫ ≻ ❪G2,L2,T2❫.
-#G1 #G2 #L1 #L2 #T1 #T2 #H #H0
-elim (fpbq_inv_fpb … H) -H // #H elim H0 -H0 //
+ ∨∨ ❪G1,L1,T1❫ ≅ ❪G2,L2,T2❫
+ | ❪G1,L1,T1❫ ≻ ❪G2,L2,T2❫.
+#G1 #G2 #L1 #L2 #T1 #T2 #H
+elim (feqg_dec sfull … G1 G2 L1 L2 T1 T2) //
+[ /2 width=1 by or_introl/
+| /4 width=1 by fpbq_fneqx_inv_fpb, or_intror/
+]
qed-.