On God's Power
Latin Grammar: Unus, nullus, alter
Utrum Deus possit remittere peccatori culpam et poenam sine infusione gratiae creatae
Quod non: Quia nullus est quin est gratus Deo vel reprobatus ab eo; sed per peccatum est homo reprobatus et per gratiam acceptus; igitur nullus est nec esse potest quin sit in peccato vel in gratia; igitur expulsio unius infert formaliter infusionem alterius.
Contra: Hoc fieri non includit contradictionem; igitur Deus potest hoc facere.
There are a few adjectives in Latin that decline differently from normal first/second declension adjectives in the singular genitive and dative, but regularly in the plural. These adjectives, which all have the same morphology, include unus, nullus, and alter: "one," "none," and "the other," all of which Ockham uses in the passage above. The other adjectives that work this way are alius, solus, totus, ullus, neuter, and uter.
Exercise: Find the correct form of the given adjective to make it agree with the given noun.