Apply df_mend__df_sdrg__df_cytp__df_topsep__df_toplnd__df_rcl__df_he__ax_frege1__ax_frege2__ax_frege8__ax_frege28__ax_frege31__ax_frege41__ax_frege52a__ax_frege54a__ax_frege58a__ax_frege52c__ax_frege54c with
wceq csdrg (cmpt (λ x0 . cdr) (λ x0 . crab (λ x1 . wcel (co (cv x0) (cv x1) cress) cdr) (λ x1 . cfv (cv x0) csubrg))).