Apply df_ifs__df_cgr3__df_fs__df_segle__df_outsideof__df_line2__df_ray__df_lines2__df_fwddif__df_fwddifn__df_hf__df_fne__df_3nand__df_gcdOLD__ax_prv1__ax_prv2__ax_prv3__df_ssb with
wceq cfne (copab (λ x0 x1 . wa (wceq (cuni (cv x0)) (cuni (cv x1))) (wral (λ x2 . wss (cv x2) (cuni (cin (cv x1) (cpw (cv x2))))) (λ x2 . cv x0)))).