Let $A=\{1,2,\{3,4\}, 5\} .$ Which of the following statements are incorrect and why ?
$\{1,2,5\}\subset A$
Let $A=\{1,2,\{3,4\}, 5\} .$ Which of the following statements are incorrect and why ?
$\{1,2,5\}\subset A$
$A=\{1,2,\{3,4\}, 5\}$
The statement $\{1,2,5\}\subset A$ is correct because each element of $\{1,2,5\}$ is also an element of $A.$
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