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