Examlex
i. The Cunard luxury liner, Queen Elizabeth 2, cannot be docked in Hong Kong and Bangkok at the same time. Events such as these that cannot occur simultaneously are said to be mutually exclusive. ii. If there are 'm' ways of doing one thing and 'n' ways of doing another thing, the multiplication formula states that there are (m) (n) ways of doing both.
iii. A permutation is an arrangement of a set of objects in which order does not matter.
Waiver
A waiver is the voluntary relinquishment or surrender of some known right or privilege.
Supervening Illegality
A situation where a law change after an agreement is made renders the performance of the contract illegal.
Impossibility
A concept in contract law where unanticipated events make the fulfillment of a contract's terms unfeasible or unable to be completed.
Substitute
An alternative or replacement for something else, particularly in the context of products, goods, or services.
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