(* Advanced properties ******************************************************)
(* Basic_1: was only: sn3_appls_lref *)
-lemma csn_applv_cnf: ∀L,T. 𝐒[T] → L ⊢ 𝐍[T] →
+lemma csn_applv_cnf: ∀L,T. 𝐒⦃T⦄ → L ⊢ 𝐍⦃T⦄ →
∀Vs. L ⊢ ⬇* Vs → L ⊢ ⬇* ⒶVs.T.
#L #T #H1T #H2T #Vs elim Vs -Vs [ #_ @(csn_cnf … H2T) ] (**) (* /2 width=1/ does not work *)
#V #Vs #IHV #H
elim (csnv_inv_cons … H) -H #HV #HVs
@csn_appl_simple_tstc // -HV /2 width=1/ -IHV -HVs
-[ #X #H #H0
- lapply (cprs_fwd_cnf_vector … H) -H // -H1T -H2T #H
- elim (H0 ?) -H0 //
-| -L -V elim Vs -Vs //
-]
+#X #H #H0
+lapply (cprs_fwd_cnf_vector … H) -H // -H1T -H2T #H
+elim (H0 ?) -H0 //
qed.
(* Basic_1: was: sn3_appls_beta *)
lapply (csn_fwd_pair_sn … H1T) #HV0
lapply (csn_fwd_flat_dx … H1T) #H2T
@csn_appl_simple_tstc // -HV0 /2 width=1/ -IHV -H2T
-[ #X #H #H0
- elim (cprs_fwd_beta_vector … H) -H #H
- [ -H1T elim (H0 ?) -H0 //
- | -H0 @(csn_cprs_trans … H1T) -H1T /2 width=1/
- ]
-| -H1T elim Vs -Vs //
+#X #H #H0
+elim (cprs_fwd_beta_vector … H) -H #H
+[ -H1T elim (H0 ?) -H0 //
+| -H0 @(csn_cprs_trans … H1T) -H1T /2 width=1/
]
qed.
lapply (csn_fwd_pair_sn … H1T) #HV
lapply (csn_fwd_flat_dx … H1T) #H2T
@csn_appl_simple_tstc // -HV /2 width=1/ -IHV -H2T
- [ #X #H #H0
- elim (cprs_fwd_delta_vector … HLK … HV12 … H) -HLK -HV12 -H #H
- [ -H1T elim (H0 ?) -H0 //
- | -H0 @(csn_cprs_trans … H1T) -H1T /2 width=1/
- ]
- | -L -K -V -V1 -V2 elim Vs -Vs //
+ #X #H #H0
+ elim (cprs_fwd_delta_vector … HLK … HV12 … H) -HLK -HV12 -H #H
+ [ -H1T elim (H0 ?) -H0 //
+ | -H0 @(csn_cprs_trans … H1T) -H1T /2 width=1/
]
]
qed.
lapply (csn_fwd_pair_sn … H) #HW1
lapply (csn_fwd_flat_dx … H) #H1
@csn_appl_simple_tstc // -HW1 /2 width=3/ -IHV12s -HV -H1 #X #H1 #H2
-elim (cprs_fwd_theta_vector … (V2::V2s) … H1) -H1 /2 width=1/ -HV12s -HV12
+elim (cprs_fwd_theta_vector … (V2@V2s) … H1) -H1 /2 width=1/ -HV12s -HV12
[ -H #H elim (H2 ?) -H2 //
| -H2 #H1 @(csn_cprs_trans … H) -H /2 width=1/
]
(* Basic_1: was: sn3_appls_cast *)
lemma csn_applv_tau: ∀L,W. L ⊢ ⬇* W →
∀Vs,T. L ⊢ ⬇* ⒶVs. T →
- L â\8a¢ â¬\87* â\92¶Vs. â\93£W. T.
+ L â\8a¢ â¬\87* â\92¶Vs. â\93\9dW. T.
#L #W #HW #Vs elim Vs -Vs /2 width=1/ -HW
#V #Vs #IHV #T #H1T
lapply (csn_fwd_pair_sn … H1T) #HV
lapply (csn_fwd_flat_dx … H1T) #H2T
@csn_appl_simple_tstc // -HV /2 width=1/ -IHV -H2T
-[ #X #H #H0
- elim (cprs_fwd_tau_vector … H) -H #H
- [ -H1T elim (H0 ?) -H0 //
- | -H0 @(csn_cprs_trans … H1T) -H1T /2 width=1/
- ]
-| -H1T elim Vs -Vs //
+#X #H #H0
+elim (cprs_fwd_tau_vector … H) -H #H
+[ -H1T elim (H0 ?) -H0 //
+| -H0 @(csn_cprs_trans … H1T) -H1T /2 width=1/
]
qed.