Apply df_mndo__df_ghomOLD__df_rngo__df_drngo__df_rngohom__df_rngoiso__df_risc__df_com2__df_fld__df_crngo__df_idl__df_pridl__df_maxidl__df_prrngo__df_dmn__df_igen__df_xrn__df_coss with
wceq cghomOLD (cmpt2 (λ x0 x1 . cgr) (λ x0 x1 . cgr) (λ x0 x1 . cab (λ x2 . wa (wf (crn (cv x0)) (crn (cv x1)) (cv x2)) (wral (λ x3 . wral (λ x4 . wceq (co (cfv (cv x3) (cv x2)) (cfv (cv x4) (cv x2)) (cv x1)) (cfv (co (cv x3) (cv x4) (cv x0)) (cv x2))) (λ x4 . crn (cv x0))) (λ x3 . crn (cv x0)))))).