Let n be given.

Assume Hn.

rewrite the current goal using recip_SNo_pos_eps_ n Hn (from right to left).

An exact proof term for the current goal is recip_SNo_pos_invol (eps_ n) (SNo_eps_ n (nat_p_omega n Hn)) (SNo_eps_pos n (nat_p_omega n Hn)).

∎