If $p$, $q$, $r$ are simple propositions with truth values $T$, $F$, $T$ respectively, then which of the following is not a true statement?

  • A
    $[q \land (p \to q)] \to p$
  • B
    $(p \land q) \to (q \lor \sim p)$
  • C
    $[(\sim p \lor q) \land \sim r] \leftrightarrow p$
  • D
    $(p \land q) \lor (\sim q \lor r)$

Explore More

Similar Questions

By giving a counterexample,show that the following statement is not true.
$p:$ If all the angles of a triangle are equal,then the triangle is an obtuse-angled triangle.

Let $p$ and $q$ be any two logical statements and $r: p \to (\sim p \vee q)$. If $r$ has a truth value $F$,then the truth values of $p$ and $q$ are respectively

Which of the following sentences are statements? Give reasons for your answer.
"Answer this question."

Write the negation of the following statement:
$p:$ For every real number $x, x^{2} > x.$

The contrapositive of $\sim q \to p$ is equivalent to

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo