UGC NET Questions (Paper – 1)

In traditional logic, a universal affirmative proposition has the form “All S are P”. It makes a positive claim about every member of the subject class. Such propositions are symbolised as A-type in the square of opposition. Therefore the proposition described in the stem is a universal affirmative.

Option A:
Option A, particular affirmative, asserts something about some members of a class, as in “Some S are P”. It does not cover all members and so cannot match the description in the question.

Option B:
Option B correctly names universal affirmative as the proposition that affirms a predicate of every member of the subject class. This aligns perfectly with the phrase “all members of a class”. Hence it is the correct answer.

Option C:
Option C, particular negative, denies a predicate about some members, as in “Some S are not P”. It changes both the quantity and quality from what the stem states. Thus particular negative is not appropriate.

Option D:
Option D, universal negative, denies something of all members, as in “No S are P”. While universal in scope, it is not affirmative in quality. Therefore universal negative does not fit the description.