Millionaire Mode

Logic and Proof

Question 1 of 15

Which of the following is a tautology?

  1. ¬(P ∨ Q)
  2. (P ∧ Q) → P
  3. (P → Q) ∨ (Q → P)
  4. ¬(P → Q) → (P ∧ Q)

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000