Question

Which of the following are statements?

• A. $4-x=8$
• B. $4$ is odd
• C. $5\in \{1,4,5,6\}$
• D. $2<3$

Answer 1

Answer: (B), (C), (D)

$2<3$

Expressions which are certainly true or certainly false are called Mathematical statements.
$4-x$ is true for $x=-4$ but false for any other value of $x$. Hence, it is not a statement.
$4$ is odd is certainly false, hence a mathematical statement.
$5\in \{1,4,5,6\}$ is always true, hence a mathematical statement.
$2<3$ is always true, hence a mathematical statement.