Let $A = \{1, 2, \{3, 4\}, 5\}$. Which of the following statements is incorrect and why?
$1 \subset A$
$1 \subset A$
(A) Given the set $A = \{1, 2, \{3, 4\}, 5\}$.
The statement $1 \subset A$ is incorrect.
In set theory,an element of a set is denoted by the symbol $\in$. Since $1$ is an element of $A$,it should be written as $1 \in A$.
$A$ subset is formed by enclosing elements in braces. Therefore,the correct subset representation would be $\{1\} \subset A$.
The statement $1 \subset A$ is incorrect.
In set theory,an element of a set is denoted by the symbol $\in$. Since $1$ is an element of $A$,it should be written as $1 \in A$.
$A$ subset is formed by enclosing elements in braces. Therefore,the correct subset representation would be $\{1\} \subset A$.
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