# Math Help - [SOLVED] von Neumann Ordinals

1. ## [SOLVED] von Neumann Ordinals

Let $\alpha$ and $\beta$ be two von Neumann ordinals. Show that $\alpha \subset \beta$ if and only if $\alpha \in \beta$ .

<= is easy enough

=> is where my mind breaks down...

2. Ah sugar didn't mean to post this.

Internet was disconnecting as I hit create new thread so thought it never got made... Can just ignore it...