Question
Let $\text{A}=\{\phi,\{\phi\},1\{1,\phi\},2\}.$ Then the statement is true?
$\{\{\phi\}\}\subset\text{A}.$
$\{\{\phi\}\}\subset\text{A}.$
✓
Answer
True.Explanation:
$\because\{\{\phi\}\}$ is a subset of A.
$\because\{\{\phi\}\}$ is a subset of A.
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