Section 513: Contingent contract

1) If a contingent contract is concluded to do or not to do any act if some event happens in the future, such a contract shall create no obligation until such an event happens.

2) If a contingent contract is so concluded as to be deemed to be concluded if any person does a particular act in the future, such a contract shall create no obligation if such a person does anything by which he or she becomes unable, or it becomes impossible for him or her to do such an act.

3) If a contract is concluded to do or not to do any act if any uncertain event does not happen in the future, the obligation under such a contract shall arise only after such an event becomes impossible to happen.

4) If a contract is concluded to do or not to do any act if any event happens within any fixed time in the future, the contract shall be deemed to be void after such an event becomes impossible to happen within, or after the expiry of, the fixed time.

5) If a contract is concluded to do or not to do any act if any event does not happen within any fixed time in the future, the obligation under such a contract shall arise if such an event does not happen or it becomes certain that such an event will not happen within the fixed time.