Apply df_ch__df_oc__df_ch0__df_shs__df_span__df_chj__df_chsup__df_pjh__df_cm__df_hosum__df_homul__df_hodif__df_hfsum__df_hfmul__df_h0op__df_iop__df_nmop__df_cnop with
wceq cspn (cmpt (λ x0 . cpw chil) (λ x0 . cint (crab (λ x1 . wss (cv x0) (cv x1)) (λ x1 . csh)))).
Assume H11:
wceq ... ....