-lemma lfpr_frees_conf: ∀h,G. lexs_frees_confluent (cpr_ext h G) cfull.
-/5 width=9 by cpm_fwd_cpx, lfpx_frees_conf, lexs_co, cext2_co/ qed-.
+lemma lfpr_fle_comp: ∀h,G. lfxs_fle_compatible (cpm 0 h G).
+/4 width=5 by cpm_fwd_cpx, lfpx_fle_comp, lfxs_co/ qed-.