User blog comment:Moooosey/Simple psi-- a fairly simple ocf/@comment-43798125-20191105221608

One last question. How good is this?

C_0(α)={0,Ω} C_n+1(α)={γ+δ,γδ,γ^δ,φ_γ(δ),ψ(η),w_γ|γ,δ,η∈C_n(α);η<α} C(α)=⋃(n<ω)C_n(α) ψ_0(α)=min{β∈Ω|β∉C(α)} ψ_1(α)=sup(C(α))