(* Basic_1: includes: wcpr0_drop *)
lemma lpr_ldrop_conf: ∀G. dropable_sn (lpr G).
-/3 width=5 by lpx_sn_deliftable_dropable, cpr_inv_lift1/ qed-.
+/3 width=6 by lpx_sn_deliftable_dropable, cpr_inv_lift1/ qed-.
(* Basic_1: includes: wcpr0_drop_back *)
lemma ldrop_lpr_trans: ∀G. dedropable_sn (lpr G).
-/3 width=9 by lpx_sn_liftable_dedropable, cpr_lift/ qed-.
+/3 width=10 by lpx_sn_liftable_dedropable, cpr_lift/ qed-.
lemma lpr_ldrop_trans_O1: ∀G. dropable_dx (lpr G).
/2 width=3 by lpx_sn_dropable/ qed-.