Particular negative proposition – UGC NET Question

A particular negative proposition is of the form “Some S are not P”. It denies the predicate for at least one member of the subject class. In the square of opposition, it is classified as an O-type proposition. Therefore the description in the stem corresponds to a particular negative.

Option A:
Option A, universal affirmative, asserts that all members of a class possess a certain property, as in “All S are P”. It does not involve denying something of some members. Hence it cannot be the correct answer.

Option B:
Option B, universal negative, denies the predicate for every member of the subject class, as in “No S are P”. This is too strong compared with the phrase “some members” in the stem. Thus universal negative is not suitable here.

Option C:
Option C correctly names particular negative as the proposition that denies something about some members. It matches both the quantity and the negative quality of the statement described. Therefore this option is correct.

Option D:
Option D, particular affirmative, affirms something of some members, as in “Some S are P”. It lacks the negative component required by the question. Hence particular affirmative is not the right choice.