زَيْدٌ شَاعِرٌ لَا كَاتِبٌ
Zayd is a poet, not a writer.
If the addressee instead believes Zayd is a writer and not a poet, the assertion reverses that judgment. The same wording can therefore implement qasr al-qalb in a different rhetorical situation.
Comparative review
DeviceRhetorical contribution
لاAffirms then denies a rival
بلTurns toward a replacement assertion
لكنCorrects a preceding expectation
ما…إلاExplicit negation followed by exception
إنماCompact restrictive particle
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Qasr by Coordination, Negation–Exception, and Innamā
زَيْدٌ شَاعِرٌ لَا كَاتِبٌ
Zayd is a poet, not a writer.
If the addressee instead believes Zayd is a writer and not a poet, the assertion reverses that judgment. The same wording can therefore implement qasr al-qalb in a different rhetorical situation.
Comparative review
DeviceRhetorical contribution
لاAffirms then denies a rival
بلTurns toward a replacement assertion
لكنCorrects a preceding expectation
ما…إلاExplicit negation followed by exception
إنماCompact restrictive particle