The number of non-empty subsets of the set $\{1, 2, 3, 4\}$ is
$15$
$14$
$16$
$17$
List all the elements of the following sers :
$F = \{ x:x$ is a consonant in the Englishalphabet which precedes $k\} $
What universal set $(s)$ would you propose for each of the following :
The set of isosceles triangles
Which of the following are sets ? Justify your answer.
The collection of all the months of a year beginning with the letter $\mathrm{J}.$
Which of the following sets are finite or infinite.
$\{1,2,3, \ldots 99,100\}$
In rule method the null set is represented by