For each of the following sets, determine whether 2 is an element of that set

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1

For each of the following sets, determine whether 2 is an element of that set.

a. {x | x is an integer greater than 1}
b. {x | x is the square of an integer}
c. {2, {2}}
d. {{2}, {{2}}}
e. {{2}, {2, {2}}}
f. {{{2}}}