lemma frees_reqg_conf (S):
reflexive … S →
- â\88\80f,L1,T. L1 â\8a¢ ð\9d\90\85+â\9dªTâ\9d« ≘ f →
- â\88\80L2. L1 â\89\9b[S,T] L2 â\86\92 L2 â\8a¢ ð\9d\90\85+â\9dªTâ\9d« ≘ f.
+ â\88\80f,L1,T. L1 â\8a¢ ð\9d\90\85+â\9d¨Tâ\9d© ≘ f →
+ â\88\80L2. L1 â\89\9b[S,T] L2 â\86\92 L2 â\8a¢ ð\9d\90\85+â\9d¨Tâ\9d© ≘ f.
/3 width=7 by frees_seqg_conf, rex_inv_frees/ qed-.
(* Properties with free variables inclusion for restricted closures *******)