(* Basic_1: was: sc3_arity_csubc *)
theorem aacr_aaa_csubc_lifts: ∀RR,RS,RP.
acp RR RS RP → acr RR RS RP (λL,T. RP L T) →
- ∀L1,T,A. L1 ⊢ T ÷ A → ∀L0,des. ⇩*[des] L0 ≡ L1 →
- ∀T0. ⇧*[des] T ≡ T0 → ∀L2. L2 [RP] ⊑ L0 →
- ⦃L2, T0⦄ [RP] ϵ 〚A〛.
+ ∀L1,T,A. L1 ⊢ T ⁝ A → ∀L0,des. ⇩*[des] L0 ≡ L1 →
+ ∀T0. ⇧*[des] T ≡ T0 → ∀L2. L2 ⊑[RP] L0 →
+ ⦃L2, T0⦄ ϵ[RP] 〚A〛.
#RR #RS #RP #H1RP #H2RP #L1 #T #A #H elim H -L1 -T -A
[ #L #k #L0 #des #HL0 #X #H #L2 #HL20
>(lifts_inv_sort1 … H) -H
#L3 #V3 #T3 #des3 #HL32 #HT03 #HB
elim (lifts_total des3 W0) #W2 #HW02
elim (ldrops_lsubc_trans … H1RP H2RP … HL32 … HL02) -L2 #L2 #HL32 #HL20
- lapply (aaa_lifts … L2 W2 … (des @ des3) … HLWB) -HLWB /2 width=3/ #HLW2B
- @(IHA (L2. ⓛW2) … (des + 1 @ des3 + 1)) -IHA
+ lapply (aaa_lifts … L2 W2 … (des @@ des3) … HLWB) -HLWB /2 width=3/ #HLW2B
+ @(IHA (L2. ⓛW2) … (des + 1 @@ des3 + 1)) -IHA
/2 width=3/ /3 width=5/
]
| #L #V #T #B #A #_ #_ #IHB #IHA #L0 #des #HL0 #X #H #L2 #HL20
(* Basic_1: was: sc3_arity *)
lemma aacr_aaa: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λL,T. RP L T) →
- ∀L,T,A. L ⊢ T ÷ A → ⦃L, T⦄ [RP] ϵ 〚A〛.
+ ∀L,T,A. L ⊢ T ⁝ A → ⦃L, T⦄ ϵ[RP] 〚A〛.
/2 width=8/ qed.
lemma acp_aaa: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λL,T. RP L T) →
- ∀L,T,A. L ⊢ T ÷ A → RP L T.
+ ∀L,T,A. L ⊢ T ⁝ A → RP L T.
#RR #RS #RP #H1RP #H2RP #L #T #A #HT
lapply (aacr_acr … H1RP H2RP A) #HA
@(s1 … HA) /2 width=4/