Originating in the legal profession, argument in the alternative is a strategy in which a lawyer advances several competing (and possibly mutually exclusive) arguments in order to pre-empt objections by his adversary, with the goal of showing that regardless of interpretation there is no reasonable conclusion other than the advocate's.
Bart Simpson's classic "I didn't do it, no one saw me do it, you can't prove anything!" could be considered a somewhat humorous example. In a more serious example, a lawyer might argue, not only that his client was elsewhere when a murder or other crime took place, but also that even if he had been on the scene, he would have had no way of accessing the alleged murder weapon. In this way, the lawyer attacks several premises of the prosecution's argument at once. The secondary line of reasoning might be presented to persuade a sub-audience who would not otherwise agree with the primary argument.
In regards to contract law, arguing in the alternative is done where a dispute arises over the terms of a contract. In a particular case it may be best for the plaintiff to allege that a statement made was to become a term of the contract. However the circumstances of the case may be such that the plaintiff cannot be certain that the court will accept this argument. To allow for this possibility, all the plaintiff need do is to argue in the alternative that the statement was in fact a representation (which allows for remedies based on misrepresentation) or again in the alternative that the statement became a part of a collateral contract.
Occasionally, such arguments can be confusing to some people, who perceive a self-contradiction. Generally speaking, this is a case of mistakenly thinking the argument claims both alternatives are true, when in reality it is claiming only that one or the other of them must be.
Famous quotes containing the words alternative and/or argument:
“If the alternative is to keep all just men in prison, or give up war and slavery, the State will not hesitate which to choose.”
—Henry David Thoreau (18171862)
“Coming out, all the way out, is offered more and more as the political solution to our oppression. The argument goes that, if people could see just how many of us there are, some in very important places, the negative stereotype would vanish overnight. ...It is far more realistic to suppose that, if the tenth of the population that is gay became visible tomorrow, the panic of the majority of people would inspire repressive legislation of a sort that would shock even the pessimists among us.”
—Jane Rule (b. 1931)