Action to enforce a contract containing an arbitration clause. Judgment debtor who was a partner of the judgment creditors and, after being expelled from the partnership, began providing services to another company. Judgment creditors seeking enforcement of a liquidated damages clause for breach of contract. Objection to enforcement without security upheld on the basis of the arbitration clause, as the instrument lacks certainty. The liquidated damages clause may only be determined in arbitration proceedings. Dismissal of the enforcement action: