1 (**************************************************************************)
4 (* ||A|| A project by Andrea Asperti *)
6 (* ||I|| Developers: *)
7 (* ||T|| The HELM team. *)
8 (* ||A|| http://helm.cs.unibo.it *)
10 (* \ / This file is distributed under the terms of the *)
11 (* v GNU General Public License Version 2 *)
13 (**************************************************************************)
15 include "basic_2/conversion/cpc.ma".
17 (* CONTEXT-SENSITIVE PARALLEL CONVERSION ON TERMS ***************************)
19 (* Main properties **********************************************************)
21 theorem cpc_conf: ∀L,T0,T1,T2. L ⊢ T0 ⬌ T1 → L ⊢ T0 ⬌ T2 →
22 ∃∃T. L ⊢ T1 ⬌ T & L ⊢ T2 ⬌ T.