Question

If $p$ is true and $q$ is false then which of the following is not true?

• A. $p\to q$ is false
• B. $p\vee q$ is true
• C. $p\wedge q$ is false
• D. $p\leftrightarrow q$ is true

Answer 1

Answer: (D)

$p\leftrightarrow q$ is true

Given $p$ is true and $q$ is false then

$p\to q$ is false , $p\vee q$ is true , $p\wedge q$ is false , $p\leftrightarrow q$ is false

Therefore option $D$ is required answer