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5/49 MCQs for:

Logic

Which of the following is the symbol for 'for all' in logic?

∧.

∀.

∃.

∨.

Which logical expression is equivalent to ¬(p ↔ q)?

¬p ∧ ¬q.

¬p ∨ ¬q.

¬(p ∨ q).

(p ∧ ¬q) ∨ (¬p ∧ q).

What is the value of (∀x)(x² ≥ 0) if the domain is all real numbers (x ∈ ℝ)?

Depends on the value of x.

Cannot be determined.

True.

False.

p and q are two statements.

The truth table that represents the statement "p and q" is:

C.

A.

D.

B.

Which of the following is the symbol for 'and' in logic?

→.

∧.

¬.

∨.