List of ordinals: Difference between revisions

* [[omega^2|\( \omega^{2} \)]], the second infinite additive principal ordinal

* \( \omega^{3} \)

* [[omega^omega|\( \omega^{\omega} \)]]

* [[epsilon_numbers#zero|\( \psi_{0}(\Omega) = \varphi(1,0) = \varepsilon_{0} \)]], the PTO of PA and ACA₀^{(sort out page)}