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14
15 include "basic_2/substitution/ldrop_lpx.ma".
16 include "basic_2/reducibility/tpr_lift.ma".
17 include "basic_2/reducibility/ltpr.ma".
18
19 (* CONTEXT-FREE PARALLEL REDUCTION ON LOCAL ENVIRONMENTS ********************)
20
21 (* Basic_1: was: wcpr0_drop *)
22 lemma ltpr_ldrop_conf: dropable_sn ltpr.
23 /3 width=3 by lpx_deliftable_dropable, tpr_inv_lift1/ qed.
24
25 (* Basic_1: was: wcpr0_drop_back *)
26 lemma ldrop_ltpr_trans: dedropable_sn ltpr.
27 /2 width=3/ qed.
28
29 lemma ltpr_ldrop_trans_O1: dropable_dx ltpr.
30 /2 width=3/ qed.