Mistake 1: Every Qur’anic verse is automatically nass in the technical sense. Correction: this grade refers to what the discourse was specifically brought forward to express.
Mistake 2: An imaginable alternative makes zahir non-binding. Correction: unsupported possibilities do not displace the apparent ruling.
Mistake 3: Because mufassar once allowed the possibility of naskh, people can abrogate it today. Correction: the textbook qualifies that possibility by the period of revelation.
Mistake 4: Muhkam simply means strongly emphatic language. Correction: it rules out interpretation, specification and abrogation in the technical sense.