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Question
Which of the following statement are correct?
Write a correct form of each of the incorrect statement.
\[\left\{ a \right\} \subset \left\{ \left\{ a \right\}, b \right\}\]
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Solution
The correct forms of each of the incorrect statements are:
\[{\left\{ a \right\}} \subset \left\{ \left\{ a \right\}, b \right\}\]
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