Minor: All roses are flowers.
Major: No flowers are metals.
Conclusion: No roses are metals.
Unlike the first mood, the major premise here is universal negative. If metalhood is denied of every flower, and every rose is a flower, metalhood must be denied of every rose.
Incorrect conclusion: Some roses are metals. Correct conclusion: No roses are metals. The valid conclusion excludes the predicate from the entire minor class.
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The First Figure: Conditions of Validity and Four Productive Moods
Minor: All roses are flowers.
Major: No flowers are metals.
Conclusion: No roses are metals.
Unlike the first mood, the major premise here is universal negative. If metalhood is denied of every flower, and every rose is a flower, metalhood must be denied of every rose.
Incorrect conclusion: Some roses are metals. Correct conclusion: No roses are metals. The valid conclusion excludes the predicate from the entire minor class.