Question

Express each of the following sets in set-builder notation (form):

(v) $\left\{\text{Monday, Tuesday, Wednesday}\right\}$

Answer 1

Step: Expressing the given set in set-builder form

In set builder method the actual elements of the set are not written, but a rule or a statement or a formula is written in the briefest possible way

$\text{Given set = {Monday, Tuesday, Wednesday}}$

We can see that the elements of the given set are names of the first three days of a week.

Hence, the set-builder form is
{x : x is the name of the first three days of a week}