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5/49 MCQs for:

Logic

Which logical operator represents the disjunction or 'or' operation?

∨.

¬.

→.

∧.

What is the value of ¬(¬p) if p is true?

False.

True.

Cannot be determined.

Depends on the value of p.

What is the value of (∀x)(x + 5 = 10) if the domain is all natural numbers (x ∈ ℕ)?

False.

Cannot be determined.

True.

Depends on the value of x.

Which of the following is equivalent to 'for all x, P(x)' in logic?

P(x).

¬P(x).

∀x, P(x).

∃x, P(x).

Which of the following is equivalent to 'not p' in logic?

¬p.

p ∨ q.

p ∧ q.

p → q.