Which of the following are sets ? Justify your answer.
The collection of all boys in your class.
Which of the following are sets ? Justify your answer.
The collection of all boys in your class.
The collection of all boys in your class is a well-defined collection because you can definitely identify a boy who belongs to this collection.
Hence, this collection is a set.
Similar Questions
Let $A=\{1,2,\{3,4\}, 5\} .$ Which of the following statements are incorrect and why ?
$\{ \{ 3,4\} \} \subset A$
Let $A=\{1,2,\{3,4\}, 5\} .$ Which of the following statements are incorrect and why ?
$\{ \{ 3,4\} \} \subset A$
Which of the following sets are finite or infinite.
The set of months of a year
Which of the following sets are finite or infinite.
The set of months of a year
Write the following as intervals :
$\{ x:x \in R,0\, \le \,x\, < \,7\} $
Write the following as intervals :
$\{ x:x \in R,0\, \le \,x\, < \,7\} $
Examine whether the following statements are true or false :
$\{ a,b\} \not\subset \{ b,c,a\} $
Examine whether the following statements are true or false :
$\{ a,b\} \not\subset \{ b,c,a\} $
Which of the following sets are finite or infinite.
The set of prime numbers less than $99$
Which of the following sets are finite or infinite.
The set of prime numbers less than $99$