Which of the following statements is logically equivalent to the statement 'Some plants are insect eaters'?
ASome non-insect eaters are not non-plants
BSome plants are non-insect eaters
CSome plants are not non-insect eaters ✓ Correct
DSome plants are not insect eaters
Correct answer: (C) Some plants are not non-insect eaters
Explanation
"Some plants are not non-insect eaters" is the equivalent statement.
The base "Some plants are insect eaters" is an I proposition.
Obversion changes the quality and negates the predicate.
An I "Some S are P" becomes O "Some S are not non-P".
So it yields "Some plants are not non-insect eaters" with the same meaning.
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