List of top Data Science and Artificial Intelligence Questions on Discrete Mathematics

Assume that creative (C) person will succeed (S) if the person is also disciplined (D) but will not succeed otherwise.
Statement:
(i) C $\land$ S $\leftrightarrow$ D
(ii) C $\rightarrow$ (S $\rightarrow$ D)
(iii) C $\leftrightarrow$ ((D $\rightarrow$ S) $\lor$ $\neg$S)

Let P(x) be a predicate. Which of the following is NOT valid in first-order logic?

Which of the following NOT true? (The name of the predicate are intuitive)

If \( xyz \) is a three-digit number and the product of its digits is \( 70 \), then find the sum of the digits.

Which of the following logical statements is not valid?