Question

Which of the following is not proposition?

• A. $3$ is prime.
• B. $\sqrt{2}$ is irrational.
• C. Mathematics is interesting.
• D. $5$ is an even integer.

Answer 1

Answer: (C)

Mathematics is interesting.

A proposition is a declaration that can be either true or false, but not both.
A) $3$ is prime, its true
B) $\sqrt{2}$ is irrational, it is true.
C) Mathematics is interesting, we cannot say anything about it.
D) $5$ is an even integer, It is false.


Hence, option C.