( p ⇒ q ) ∧ (q ⇒ r) ⇒ (p ⇒ r) is

Question

( p ⇒ q ) ∧ (q ⇒ r) ⇒ (p ⇒ r) is (A) a tautology (B) a contradiction (C) a tautology and a contradiction (D) neither a tautology nor a contradiction

Tardigrade Admin · Accepted Answer

Correct answer is (a) a tautology

Q. (p⇒q)∧(q⇒r)⇒(p⇒r) is