Key legal question
Whether a set-off defense in definitive debt enforcement can defeat the claim without liquid documentary proof of the counterclaim.
Extracted holding
No. The counterclaim must be proven by documents in a liquid manner; only documents that would themselves qualify for provisional debt enforcement are sufficient.
Extracted reasoning
A claim based on an enforceable judgment gives rise to definitive debt enforcement unless the debtor proves by documents that the debt was extinguished, stayed, or time-barred. Extinction may occur by set-off, but both existence and maturity of the counterclaim must be documented with the same level of liquidity required for provisional debt enforcement.