-(**************************************************************************)
-(* ___ *)
-(* ||M|| *)
-(* ||A|| A project by Andrea Asperti *)
-(* ||T|| *)
-(* ||I|| Developers: *)
-(* ||T|| The HELM team. *)
-(* ||A|| http://helm.cs.unibo.it *)
-(* \ / *)
-(* \ / This file is distributed under the terms of the *)
-(* v GNU General Public License Version 2 *)
-(* *)
-(**************************************************************************)
-
-include "basic_2/rt_transition/lfpx_fsle.ma".
-(*
-lemma R_fle_comp_LTC: ∀R. R_fle_compatible R → R_fle_compatible (LTC … R).
-#R #HR #L #T1 #T2 #H elim H -T2
-/3 width=3 by fle_trans_dx/
-qed-.
-*)
-
-(* Note: "⦃L2, T1⦄ ⊆ ⦃L0, T1⦄" may not hold *)
-axiom lfpx_cpx_conf_fsle4: ∀h,G,L0,T0,T1. ⦃G, L0⦄ ⊢ T0 ⬈[h] T1 →
- ∀L2. ⦃G, L0⦄ ⊢⬈[h, T0] L2 → ⦃L2, T1⦄ ⊆ ⦃L0, T1⦄.
-(*
-#h #G0 #L0 #T0 @(fqup_wf_ind_eq (Ⓕ) … G0 L0 T0) -G0 -L0 -T0
-#G #L #T #IH #G0 #L0 * *
-[ #s #HG #HL #HT #X #HX #Y #HY destruct -IH
- lapply (lfxs_fwd_length … HY) -HY #H0
- elim (cpx_inv_sort1 … HX) -HX #H destruct
- /3 width=1 by fsle_sort_length, and3_intro/
-| * [| #i ] #HG #HL #HT #X #HX #Y #HY destruct
- [ elim (cpx_inv_zero1 … HX) -HX
- [ #H destruct
- elim (lfxs_inv_zero … HY) -HY *
- [ #H1 #H2 destruct -IH /2 width=1 by and3_intro/
- | #I #K0 #K2 #V0 #V2 #HK02 #HV02 #H1 #H2 destruct
- lapply (lfxs_fwd_length … HK02) #HK
- elim H2R -H2R #H2R
- [ <(H2R G0) in HV02; -H2R #HV02
- elim (IH … HV02 … HK02) /2 width=2 by fqu_fqup, fqu_lref_O/ -IH -HV02 -HK02 #H1V #H2V #_
- /4 width=1 by fsle_trans_tc, fsle_zero_bi, and3_intro/
- | lapply (H2R … HV02 … HK02) -H2R -HV02 -HK02 -IH #HKV20
- /3 width=1 by fsle_zero_bi, and3_intro/
- ]
- | #f #I #K0 #K2 #Hf #HK02 #H1 #H2 destruct
- ]
- | * #I0 #K0 #V0 #V1 #HV01 #HV1X #H destruct
- elim (lfxs_inv_zero_pair_sn … HY) -HY #K2 #V2 #HK02 #HV02 #H destruct
- ]
- | elim (cpx_inv_lref1 … HX) -HX
- [ #H destruct
- elim (lfxs_inv_lref … HY) -HY *
- [ #H0 #H1 destruct /2 width=1 by and3_intro/
- | #I0 #I2 #K0 #K2 #HK02 #H1 #H2 destruct
- lapply (lfxs_fwd_length … HK02) #HK
- elim (IH … HK02) [|*: /2 width=4 by fqu_fqup/ ] -IH -HK02
- /3 width=5 by and3_intro, fsle_lifts_SO/
- ]
- | * #I0 #K0 #V1 #HV1 #HV1X #H0 destruct
- elim (lfxs_inv_lref_bind_sn … HY) -HY #I2 #K2 #HK02 #H destruct
- lapply (lfxs_fwd_length … HK02) #HK
- elim (IH … HK02) [|*: /2 width=4 by fqu_fqup/ ] -IH -HV1 -HK02
- /3 width=5 by fsle_lifts_SO, and3_intro/
- ]
- ]
-| #l #HG #HL #HT #X #HX #Y #HY destruct -IH
- lapply (lfxs_fwd_length … HY) -HY #H0
- >(cpx_inv_gref1 … HX) -X
- /3 width=1 by fsle_gref_length, and3_intro/
-| #p #I #V0 #T0 #HG #HL #HT #X #HX #Y #HY destruct
- lapply (lfxs_fwd_length … HY) #H0
- elim (lfxs_inv_bind … V0 ? HY) -HY // #HV0 #HT0
- elim (cpx_inv_bind1 … HX) -HX *
- [ #V1 #T1 #HV01 #HT01 #H destruct
- elim (IH … HV01 … HV0) -HV01 -HV0 // #H1V #H2V #H3V
- elim (IH … HT01 … HT0) -HT01 -HT0 -IH // #H1T #H2T #H3T
- /4 width=3 by fsle_bind_eq, fsle_fwd_pair_sn, and3_intro/
- | #T #HT #HXT #H1 #H2 destruct
- elim (IH G0 … V0… V0 … HV0) -HV0 // #H1V #H2V #H3V
- elim (IH … HT … HT0) -HT -HT0 -IH // #H1T #H2T #H3T
- /3 width=5 by fsle_bind, fsle_inv_lifts_sn, and3_intro/
- ]
-| #I #V0 #X0 #HG #HL #HT #X #HX #Y #HY destruct
- elim (lfxs_inv_flat … HY) -HY #HV0 #HX0
- elim (cpx_inv_flat1 … HX) -HX *
- [ #V1 #T1 #HV01 #HT01 #H destruct
- elim (IH … HV01 … HV0) -HV01 -HV0 // #H1V #H2V #H3V
- elim (IH … HT01 … HX0) -HT01 -HX0 -IH // #H1T #H2T #H3T
- /3 width=3 by fsle_flat, and3_intro/
- | #HX #H destruct
- elim (IH G0 … V0… V0 … HV0) -HV0 // #H1V #H2V #H3V
- elim (IH … HX … HX0) -HX -HX0 -IH // #H1T #H2T #H3T
- /4 width=3 by fsle_flat_sn, fsle_flat_dx_dx, fsle_flat_dx_sn, and3_intro/
- | #HX #H destruct
- elim (IH … HX … HV0) -HX -HV0 // #H1V #H2V #H3V
- elim (IH G0 … X0… X0 … HX0) -HX0 -IH // #H1T #H2T #H3T
- /4 width=3 by fsle_flat_sn, fsle_flat_dx_dx, fsle_flat_dx_sn, and3_intro/
- | #p #V1 #W0 #W1 #T0 #T1 #HV01 #HW01 #HT01 #H1 #H2 #H3 destruct
- elim (lfxs_inv_bind … W0 ? HX0) -HX0 // #HW0 #HT0
- elim (IH … HV01 … HV0) -HV01 -HV0 // #H1V #H2V #H3V
- elim (IH … HW01 … HW0) -HW01 -HW0 // #H1W #H2W #H3W
- elim (IH … HT01 … HT0) -HT01 -HT0 -IH // #H1T #H2T #H3T
- lapply (fsle_fwd_pair_sn … H2T) -H2T #H2T
- lapply (fsle_fwd_pair_sn … H3T) -H3T #H3T
- @and3_intro [ /3 width=5 by fsle_flat, fsle_bind/ ] (**) (* full auto too slow *)
- @fsle_bind_sn_ge /4 width=1 by fsle_shift, fsle_flat_sn, fsle_flat_dx_dx, fsle_flat_dx_sn, fsle_bind_dx_sn/
- | #p #V1 #X1 #W0 #W1 #T0 #T1 #HV01 #HVX1 #HW01 #HT01 #H1 #H2 #H3 destruct
- elim (lfxs_inv_bind … W0 ? HX0) -HX0 // #HW0 #HT0
- elim (IH … HV01 … HV0) -HV01 -HV0 // #H1V #H2V #H3V
- elim (IH … HW01 … HW0) -HW01 -HW0 // #H1W #H2W #H3W
- elim (IH … HT01 … HT0) -HT01 -HT0 -IH // #H1T #H2T #H3T
- lapply (fsle_fwd_pair_sn … H2T) -H2T #H2T
- lapply (fsle_fwd_pair_sn … H3T) -H3T #H3T
- @and3_intro[ /3 width=5 by fsle_flat, fsle_bind/ ] (**) (* full auto too slow *)
- @fsle_bind_sn_ge //
- [1,3: /3 width=1 by fsle_flat_dx_dx, fsle_bind_dx_sn/
- |2,4: /4 width=3 by fsle_flat_sn, fsle_flat_dx_sn, fsle_flat_dx_dx, fsle_shift, fsle_lifts_sn/
- ]
- ]
-]
-*)