Cumulative hierarchy
= Cumulative hierarchy
{title2=$V_\alpha$}
{wiki}
The cumulative hierarchy is defined by $V_0=\varnothing$, $V_{\alpha+1}=\mathcal P(V_\alpha)$, and $V_\lambda=\bigcup_{\alpha<\lambda}V_\alpha$ at limit ordinals.
= Cumulative hierarchy
{title2=$V_\alpha$}
{wiki}
The cumulative hierarchy is defined by $V_0=\varnothing$, $V_{\alpha+1}=\mathcal P(V_\alpha)$, and $V_\lambda=\bigcup_{\alpha<\lambda}V_\alpha$ at limit ordinals.