(* Main properties **********************************************************)
-theorem cpc_conf: ∀h,G,L,T0,T1,T2. ⦃G, L⦄ ⊢ T0 ⬌[h] T1 → ⦃G, L⦄ ⊢ T0 ⬌[h] T2 →
- ∃∃T. ⦃G, L⦄ ⊢ T1 ⬌[h] T & ⦃G, L⦄ ⊢ T2 ⬌[h] T.
+theorem cpc_conf: ∀h,G,L,T0,T1,T2. ⦃G,L⦄ ⊢ T0 ⬌[h] T1 → ⦃G,L⦄ ⊢ T0 ⬌[h] T2 →
+ ∃∃T. ⦃G,L⦄ ⊢ T1 ⬌[h] T & ⦃G,L⦄ ⊢ T2 ⬌[h] T.
/3 width=3 by cpc_sym, ex2_intro/ qed-.