$A = \{ x:x \ne x\} $ represents
State whether each of the following set is finite or infinite :
The set of letters in the English alphabet
Which of the following are sets ? Justify your answer.
The collection of ten most talented writers of India.
Let $A=\{1,2,3,4,5,6\} .$ Insert the appropriate symbol $\in$ or $\notin$ in the blank spaces:
$10 \, .........\, A $
Which of the following are examples of the null set
$\{ y:y$ is a point common to any two parallellines $\} $