De transactionibus axiomata

LXVII.
In similar manner, if a settlement is general according to words, but special according to the mind of the settlers and the matter acted upon, it should not be extended to other matters that were not thought of.

LXVIII.
Cognate to a settlement are the Pact, Oath, Compromise, Matter judged, Division, and Innominate contracts.

LXIX.
However, a settlement that has been extorted by bad faith is rescinded. For the Praetor proclaims that he will not observe pacts made by bad faith.

LXX.
And indeed, if a settlement has been interposed by the fraud of the defendant, it is dissolved either by the replication of fraud or by the action of fraud.

LXXI.
By replication, if it was settled by a naked pact.

LXXII.
By the action of fraud, where an Aquilian stipulation and acceptilation have intervened.

LXXIII.
Nor does it matter in this case whether the settlement is general or special. For not even a general one, although it otherwise pertains to things the settlers were ignorant of, harms one in those things that were suppressed by the fraud of the adversary.