Determine whether each of these statements is true or false.
- $\phi$ $ \epsilon$ {$\phi$}
- $\phi$ $\epsilon$ {$\phi,$ { $\phi$}}
- {$\phi$} $ \epsilon$ {$ \phi$}
- {$\phi$} $\epsilon $ {{$\phi$}}
- {$\phi$} $\subset$ {$0$}
- {$0$} $\subset$ {$\phi$ , { $\phi$ }}
- {$\phi$} $\subset$ {{$\phi$ }, { $\phi$}}