frees_inv_bind frees_inv_flat frees_inv_bind_O
frees_lref_eq frees_lref_be frees_weak
frees_bind_sn frees_bind_dx frees_flat_sn frees_flat_dx
- frees_lift_ge frees_inv_lift_be frees_inv_lift_ge
+ frees_lift_ge frees_inv_lift_be frees_inv_lift_ge
lreq_frees_trans frees_lreq_conf
llor_atom llor_skip llor_total
llor_tail_frees llor_tail_cofrees