D. If n is prime, then n is add or nis 2. Pin is prime gin is add ornis 2. in is prime and n is neither Lodd nor 2.² NG

Q: 5. (Arguments: Law of Syllogism). The following is the proof of the validity of the argument…

A: p q r p⇒q q⇒r (p⇒q)∧ (q⇒r) p⇒r ((p⇒q)∧ (q⇒r))⇒ (p⇒r) T T T T T T T T T T F T F F F T T F T F…

Q: True or False

A: To find- True or False The converse of '' If the ball is green, then the basket is not round'' is…

Q: Does there exist false although its contrapositive Justify your answer. statement that is is true? a

A:

Q: 9. Determine the contrapositive of each statement: (a) If Erik is a poet, then he is a singer. (b)…

A:

Q: (pV-) → )へ(r→p)

A: The truth table of given argument.

Q: (3) Consider the statement "If ged(x, 20) = 1, then gcd(x, 2) = 1 or gcd(x, 5) = 1." In English (not…

A:

Q: In this activity, you want to find a statement S so that ((Av B)^¬A) → S is a tautology. (a)…

A: The following laws are used to simplify the given logical expression. Commutative law: a∧b≡b∧a.…

Q: Determine whether the following argument is valid or invalid. I am sick or I am tired. I am not…

A:

Q: Explain in a sentence how to use natural deduction proof to show that an argument of TFL is valid

A:

Q: (-pAq) v (pA-q) is a tautology

A: Tautology means always True.

Q: how to prove that contrapositive of the contrapositive is the original statement?

A: