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4 (* ||A|| A project by Andrea Asperti *)
6 (* ||I|| Developers: *)
7 (* ||T|| The HELM team. *)
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15 include "delayed_updating/substitution/lift_prototerm_eq.ma".
16 include "delayed_updating/substitution/lift_path_id.ma".
18 (* LIFT FOR PROTOTERM *******************************************************)
20 (* Constructions with tr_id *************************************************)
22 lemma lift_term_id_sn (t):
26 /2 width=1 by in_comp_lift_path_term/
29 lemma lift_term_id_dx (t):
31 #t #p * #q #Hq #H destruct //
34 lemma lift_term_id (t):
36 /3 width=2 by lift_term_id_dx, lift_term_id_sn, conj/