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/static/frees_frees.ma".
16 include "basic_2/static/fle.ma".
18 (* FREE VARIABLES INCLUSION FOR RESTRICTED CLOSURES *************************)
20 (* Main properties **********************************************************)
22 theorem fle_trans: bi_transitive … fle.
23 #L1 #L #T1 #T * #f1 #f #HT1 #HT #Hf1 #L2 #T2 * #g #f2 #Hg #HT2 #Hf2
24 /5 width=8 by frees_mono, sle_trans, sle_eq_repl_back2, ex3_2_intro/