/4 width=7 by cpm_bind, cpr_flat, ex2_intro/ (**) (* full auto not tried *)
qed-.
-theorem cpr_conf_lfpr: ∀h,G. R_confluent_lfxs (cpm 0 h G) (cpm 0 h G) (cpm 0 h G) (cpm 0 h G).
+theorem cpr_conf_lfpr: ∀h,G. R_confluent2_lfxs (cpm 0 h G) (cpm 0 h G) (cpm 0 h G) (cpm 0 h G).
#h #G #L0 #T0 @(fqup_wf_ind_eq … G L0 T0) -G -L0 -T0 #G #L #T #IH #G0 #L0 * [| * ]
[ #I0 #HG #HL #HT #T1 #H1 #T2 #H2 #L1 #HL01 #L2 #HL02 destruct
elim (cpr_inv_atom1_drops … H1) -H1