If the statement 'No monkeys are feline' is given as true, then which of the following statements can be inferred to be true?

ASome monkeys are felines

BSome felines are monkeys

CAll felines are monkeys

DSome monkeys are not feline ✓ Correct

Correct answer: (D) Some monkeys are not feline

Explanation

The inferable truth is 'Some monkeys are not feline'.

The given proposition is the universal negative E: No monkeys are feline.

By subalternation, a true E makes its subaltern O true.

The O of this pair is 'Some monkeys are not feline'.

Hence it can be validly inferred as true.

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