Legal Definitions - single condition

Single Condition

A single condition is an uncertain event that triggers or negates a duty to perform a promised action. It can be a stipulation or prerequisite in a contract, will, or other instrument, constituting the essence of the instrument. For example, if Jones promises to pay Smith $500 for repairing a car, Smith's failure to repair the car relieves Jones of the promise to pay. A single condition can be affirmative, casual, collateral, compulsory, concurrent, constructive, dependent, disjunctive, inherent, lawful, mixed, negative, positive, potestative, preexisting, promissory, resolutory, or suspensive.

• If a tenant promises to pay rent on a certain day, the payment of rent is a compulsory condition.
• If a contract requires the cooperation of both parties, the cooperation is a constructive condition.
• If a contract requires the performance of more than one act, the condition is a copulative condition.

These examples illustrate how a single condition can be different types of conditions depending on the circumstances of the agreement.