What is obversion?

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Prepare for the Traditional Logic Memoria Press Test. Optimize your learning with flashcards and in-depth explanations to boost your exam readiness.

Multiple Choice

What is obversion?

Explanation:
Obversion is forming the obverse of a categorical proposition by negating the predicate term while keeping the subject term the same, and leaving the quantity (universal or particular) and the copula unchanged. In practice, you replace the predicate with its negation, so All S are P becomes All S are not-P; No S are P becomes No S are not-P; Some S are P becomes Some S are not-P; Some S are not P becomes Some S are P. The essence is that only the predicate is negated and the subject stays fixed, which is exactly what the described option states.

Obversion is forming the obverse of a categorical proposition by negating the predicate term while keeping the subject term the same, and leaving the quantity (universal or particular) and the copula unchanged. In practice, you replace the predicate with its negation, so All S are P becomes All S are not-P; No S are P becomes No S are not-P; Some S are P becomes Some S are not-P; Some S are not P becomes Some S are P. The essence is that only the predicate is negated and the subject stays fixed, which is exactly what the described option states.

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