(* Main propertis ***********************************************************)
+(* 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 →
]
qed.
+(* 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〛.
/2 width=8/ qed.