A relation between clauses is not confined to a repeated word. The subjects may be associated, the predicates may be related, or the two whole judgments may be put into a meaningful comparison.
زَيْدٌ عَالِمٌ وَعَمْرٌو حَكِيمٌ
Zayd is learned, and ʿAmr is wise.
These are distinct assertions. If the context compares their attributes, coordination can be rhetorically fitting; syntactic parallelism alone does not make conjunction obligatory.
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Refining the Jāmiʿ and the Conditions of Elegant Coordination
A relation between clauses is not confined to a repeated word. The subjects may be associated, the predicates may be related, or the two whole judgments may be put into a meaningful comparison.
زَيْدٌ عَالِمٌ وَعَمْرٌو حَكِيمٌ
Zayd is learned, and ʿAmr is wise.
These are distinct assertions. If the context compares their attributes, coordination can be rhetorically fitting; syntactic parallelism alone does not make conjunction obligatory.