LessonsThe First Figure: Conditions of Validity and Four Productive MoodsQuiz

وأشرف الأشكال من الأربعة «الشكل الأول»
Of the four figures, the first figure is regarded as the most distinguished.

It is privileged because the passage to the conclusion is especially transparent: the minor term falls under the middle, and what is universally established or denied of the middle then applies to the minor term.

This does not mean that every imaginable first-figure combination is valid. Its productive moods require particular conditions; without them even the first figure can fail.

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Why the first figure is considered primary

The First Figure: Conditions of Validity and Four Productive Moods

وأشرف الأشكال من الأربعة «الشكل الأول»
Of the four figures, the first figure is regarded as the most distinguished.

It is privileged because the passage to the conclusion is especially transparent: the minor term falls under the middle, and what is universally established or denied of the middle then applies to the minor term.

This does not mean that every imaginable first-figure combination is valid. Its productive moods require particular conditions; without them even the first figure can fail.