Apply df_kgen__df_tx__df_xko__df_kq__df_hmeo__df_hmph__df_fil__df_ufil__df_ufl__df_fm__df_flim__df_flf__df_fcls__df_fcf__df_cnext__df_tmd__df_tgp__df_tsms with
wceq cufil (cmpt (λ x0 . cvv) (λ x0 . crab (λ x1 . wral (λ x2 . wo (wcel (cv x2) (cv x1)) (wcel (cdif (cv x0) (cv x2)) (cv x1))) (λ x2 . cpw (cv x0))) (λ x1 . cfv (cv x0) cfil))).