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Determine whether each of these statements is true or false.

  1. $\phi$ $ \epsilon$ {$\phi$}
  2. $\phi$ $\epsilon$ {$\phi,$ { $\phi$}}
  3. {$\phi$} $ \epsilon$ {$ \phi$}
  4. {$\phi$} $\epsilon $ {{$\phi$}}
  5. {$\phi$} $\subset$ {$0$}
  6. {$0$} $\subset$ {$\phi$ , { $\phi$ }}
  7. {$\phi$} $\subset$ {{$\phi$ }, { $\phi$}}

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Pooja Khatri asked Apr 5, 2019
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Suppose that $A=$ { $2,4,6$ }, $B=$ { $2,6$ }, $C=$ { $4,6$ }, and $D=$ { $4,6,8$ }. Determine which of these sets are subsets of which other of these sets.