«والاتفاقية: عبارة عن أن يكون فيه التنافي بمجرد الاتفاق»
A coincidental disjunction expresses incompatibility grounded in contingent circumstances, rather than in the inherent meanings of its components.
Suppose the rules of a competition reserve exactly one seat for exactly one of Zayd or Amr. In that setting we say: “The seat will go either to Zayd or to Amr.” The opposition comes from the contest rule. There is no essential contradiction between the two people's names.
The claimed exclusivity therefore depends on the stipulated arrangement, not on a universally necessary opposition of concepts.