If the statement 'All children are innocent' is given as true, then which of the following statements can be inferred to be true?
AAll those who are innocent are children
BSome children are innocent ✓ Correct
CAll those who are non-innocent are adults
DSome children are non-innocent
Correct answer: (B) Some children are innocent
Explanation
From "All children are innocent" the particular "Some children are innocent" follows as true.
The given proposition is an A form, All S is P, with S as children and P as innocent.
By subalternation the universal affirmative implies its subaltern particular affirmative.
Whenever every member of S is P, at least some S is P must also hold.
This immediate inference from A down to I is valid in the classical square of opposition.
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