Paper 1 · Logical Reasoning
UGC NET December 2023 (13.12.2023) Shift-I
If the statement 'No professors are materialists' is given as true, then which of the following statements could be inferred to be true?
AAll professors are materialists
BSome professors are materialists
CSome professors are not materialists ✓ Correct
DSome materialists are professors
Correct answer: (C) Some professors are not materialists — From the true universal negative, some professors are not materialists can be inferred, so that is the answer.
Explanation
★From the true universal negative, some professors are not materialists can be inferred, so that is the answer.
★No professors are materialists is a type E universal negative statement.
★If a type E statement is true, its subaltern type O is also true.
★The type O statement is some professors are not materialists.
★This follows because if none are, then certainly some are not.
★The other options either affirm or reverse the relation and do not follow.
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