#L1 #T #A #HT #L2 #HL12
@(TC_Conf3 … (λL,A. L ⊢ T ⁝ A) … HT ? HL12) /2 width=3/
qed.
-(*
-(* Note: this should be rephrased in terms of fprs *)
-lemma aaa_lfprs_cprs_conf: ∀L1,T1,A. L1 ⊢ T1 ⁝ A → ∀L2. ⦃L1⦄ ➡* ⦃L2⦄ →
- ∀T2. L2 ⊢ T1 ➡* T2 → L2 ⊢ T2 ⁝ A.
-/3 width=3/ qed.
-*)