«والعنادية: عبارة عن أن يكون فيه التنافي بين الجزئين لذاتهما»
An oppositional disjunction is one in which the incompatibility of the two components arises from what they themselves signify.
For example, a whole number is even or odd, and no such number can be both. That incompatibility follows from the meanings of evenness and oddness, not from circumstances on a particular day.
Li-dhātihimā identifies the ground of opposition; it does not merely mean that two different words or objects have been mentioned.