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

The negation of the statement pattern $(p \wedge \sim q) \rightarrow (p \vee \sim q)$ is

The negation of the expression $q \vee ((\sim q) \wedge p)$ is equivalent to

Consider the following statements:
$r: \text{If } p \to q \text{ is false, then } p \vee q \text{ is false.}$
$s: \text{If } p \leftrightarrow q \text{ is false, then } p \vee q \text{ is false.}$
The truth values of $r \to s$ and $s \to r$ are respectively:

Which of the following statements is a tautology?

Consider the following statements:
$(A)$ If $3+3=7$,then $4+3=8$.
$(B)$ If $5+3=8$,then the earth is flat.
$(C)$ If both $(A)$ and $(B)$ are true,then $5+6=17$.
Which of the following statements is correct?

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