زَيْدًا عَرَفْتُ
It was Zayd I recognized.
When the listener assumes that both Zayd and ʿAmr were recognized in the event, a fronted object and context may exclude that assumed participation. This is qasr al-ifrād.
Qalb reverses which alternative was selected; ifrād denies that several alternatives jointly satisfy the claim. Both may employ fronting, but the mistaken belief is different.
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Fronting the Object: Correction, Restriction and Ordering of Complements
زَيْدًا عَرَفْتُ
It was Zayd I recognized.
When the listener assumes that both Zayd and ʿAmr were recognized in the event, a fronted object and context may exclude that assumed participation. This is qasr al-ifrād.
Qalb reverses which alternative was selected; ifrād denies that several alternatives jointly satisfy the claim. Both may employ fronting, but the mistaken belief is different.