Suppose that the first premise of a syllogism is a disjunctive proposition, and the second premise affirms one of the disjuncts.Is the syllogism valid?

Question

Quizplus · Accepted Answer

DA disjunctive syllogism is valid if it has a disjunctive premise (one that presents two or more options), and the second premise negates one of the options, leading to a conclusion that affirms the remaining option(s). Therefore, for a syllogism to be valid when the first premise is disjunctive and the second affirms one of the disjuncts, the conclusion must negate the remaining disjunct(s), as per option D. Option A is correct because it points out that for the syllogism to be valid in the context described, the second premise should negate rather than affirm a disjunct.

Suppose That the First Premise of a Syllogism Is a Disjunctive