-lemma cpxs_aaa_conf: ∀h,o,G,L,T1,A. ⦃G, L⦄ ⊢ T1 ⁝ A →
- ∀T2. ⦃G, L⦄ ⊢ T1 ⬈*[h, o] T2 → ⦃G, L⦄ ⊢ T2 ⁝ A.
-#h #o #G #L #T1 #A #HT1 #T2 #HT12
+lemma cpxs_aaa_conf: ∀h,G,L,T1,A. ⦃G, L⦄ ⊢ T1 ⁝ A →
+ ∀T2. ⦃G, L⦄ ⊢ T1 ⬈*[h] T2 → ⦃G, L⦄ ⊢ T2 ⁝ A.
+#h #G #L #T1 #A #HT1 #T2 #HT12