Let A = {phi, {phi}, 1, {1, phi}, 7}. Which o | vedclass

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(C) Given the set $A = \{\phi, \{\phi\}, 1, \{1, \phi\}, 7\}$.$1$. $\phi \in A$: The empty set $\phi$ is an element of $A$,so this is true.$2$. $\{\ph

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$\{1\} \in A$

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(C) Given the set $A = \{\phi, \{\phi\}, 1, \{1, \phi\}, 7\}$.$1$. $\phi \in A$: The empty set $\phi$ is an element of $A$,so this is true.$2$. $\{\phi\} \in A$: The set containing the empty set $\{\phi\}$ is an element of $A$,so this is true.$3$. $\{1\} \in A$: The set $\{1\}$ is not an element of $A$. The elements of $A$ are $\phi, \{\phi\}, 1, \{1, \phi\},$ and $7$. Since $\{1\}$ is not listed as an element,this statement is false.$4$. $\{7, \phi\} \subset A$: Since both $7 \in A$ and $\phi \in A$,the set $\{7, \phi\}$ is a subset of $A$,so this is true.Therefore,the false statement is $\{1\} \in A$.

Let $A = \{\phi, \{\phi\}, 1, \{1, \phi\}, 7\}$. Which of the following is false?

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