Minor: All reciters are human.
Major: Some teachers are reciters.
Conclusion: Some humans are teachers.
Convert the particular affirmative major: “Some reciters are teachers.” Because all reciters are human, these teachers are human; then convert the particular affirmative result to obtain “Some humans are teachers.”
At every step, conversion is applied only where its quantity and quality rules permit. In particular, a particular negative cannot be converted in the same way.
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The Fourth Figure: Productive Conditions, Moods and Proofs
Minor: All reciters are human.
Major: Some teachers are reciters.
Conclusion: Some humans are teachers.
Convert the particular affirmative major: “Some reciters are teachers.” Because all reciters are human, these teachers are human; then convert the particular affirmative result to obtain “Some humans are teachers.”
At every step, conversion is applied only where its quantity and quality rules permit. In particular, a particular negative cannot be converted in the same way.