fact: Definition eh_pp_p_gen : let EH_x_z := (rlucancel_inv (ulnat_x0 [-] urnat_z1))^ @ wlrnat_x_z @ rlucancel_inv (urnat_z2 [-] ulnat_x1) in let EH_y_z := (rlucancel_inv (ulnat_y0 [-] urnat_z0))^ @ wlrnat_y_z @ rlucancel_inv (urnat_z1 [-] ulnat_y1) in let EH_xy_z := (rlucancel_inv (ulnat_xy0 [-] urnat_z0))^ @ wlrnat_xy_z @ rlucancel_inv (urnat_z2 [-] ulnat_xy1) in EH_xy_z @ (concat_p_pp _ _ _ @ whiskerR EH_x_z^ _) = concat_pp_p _ _ _ @ whiskerL _ EH_y_z @ concat_p_pp _ _ _.
imports: HoTT(Basics Types)