Let \( A, B \) and \( C \) be three sets. If \( A \subset B \) and \( B \in C \), is it true tha...

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Let \( A, B \) and \( C \) be three sets. If \( A \subset B \) and \( B \in C \), is it true that \( A \in C \) ? If not give an example.
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