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'''Arbitrariness''' is a term given to choices and actions subject to [[individual]] will, [[judgment]] or preference, based solely upon an individual's opinion or discretion. [1] [2]


'''Arbitrary''' decisions are not necessarily the same as [[random]] decisions. For example, during the 1973 oil crisis, Americans were only allowed to purchase gasoline on odd-numbered days if their license plate was odd, and on even-numbered days if their license plate was even. The [[system]] was well-defined and not random in its restrictions; however, since license plate numbers are completely unrelated to a [[person]]'s fitness to purchase gasoline, it was still an arbitrary division of people. Similarly, schoolchildren are often organized by their surname in alphabetical order, a non-random yet still arbitrary method, at least in cases where surnames are irrelevant.
==Law and Politics==
'''Arbitrary''' comes from the [[Latin]] arbitrarius, the source of arbiter; someone who is tasked to judge some matter.[3] An arbitrary legal [[judgment]] is a decision made at the discretion of the judge, not one that is fixed by law.[4] In some countries, a prohibition of arbitrariness is enshrined into the [[constitution]]. Article 9 of the Swiss Federal Constitution theoretically overrides even democratic decisions in prohibiting arbitrary government action. The US Supreme Court has overturned laws for having "no [[rational]] basis."
==Philosophy==
Arbitrary actions are closely related to [[teleology]], the study of [[purpose]]. Actions lacking a telos, a goal, are necessarily arbitrary. With no end to measure against, there can be no [[standard]] applied to [[choice]]s, so all decisions are alike. Note that arbitrary or [[random]] [[method]]s in the standard sense of arbitrary may not qualify as arbitrary choices philosophically, if they were done in furtherance of a larger purpose; in the examples above, [[discipline]] in school and avoiding overcrowding at gas stations.

[[Nihilism]] is the [[philosophy]] that believes that there is no purpose in the [[universe]], and that every choice is arbitrary. According to nihilism, the universe contains no [[value]] and is essentially [[meaning]]less. Because the [[universe]] and all of its constituents contain no higher goal for us to make subgoals from, all aspects of human life and experiences are completely arbitrary. There is no right or wrong decision, [[thought]] or [[practice]], and whatever choice a human being makes is just as meaningless and empty as any other choice he or she could've made.

Many brands of [[theism]], the belief in a [[deity]] or deities, believe that everything has a purpose and that nothing is arbitrary. In these philosophies, God created the universe for a [[reason]], and every event [[flow]]s from that. Even seemingly random events cannot escape God's hand and purpose. This is somewhat related to the argument from [[design]], the argument for God's [[existence]] because a purpose can be found in the universe.

Arbitrariness is also related to [[ethics]], the philosophy of [[decision]]-making. Even if a [[person]] has a goal, they may choose to attempt to achieve it in ways that may be considered arbitrary. [[Rationalism]] holds that knowledge comes about through [[intellectual]] calculation and [[deduction]]; many rationalists (though not all) apply this to ethics as well. All decisions should be made through reason and [[logic]], not via whim or how one "feels" what is right. [[Random]]ness may occasionally be acceptable as part of a subtask in furtherance of a larger goal, but not in general. Although, randomness can be a good way to make regulations that are assured not to segregate people. If people are lined up by their surnames, the people's positions' will not be affected by their race, age or sexual orientation.
==Mathematics==
In [[mathematics]], arbitrary normally means "any;" for instance, an arbitrary division of a set or an arbitrary permutation of a sequence. Its use implies generality and that a statement does not only apply to special cases - "you may select any choice possible, and this statement will still hold." A simple example would be "Given an arbitrary integer, multiplying it by two will result in an even number."
Even further, the implication is that generality will hold even if you have an opponent choose the item in question. In some ways arbitrary is here synonymous with worst-case.
==References==

# Merriam-Webster's Dictionary (2009)
# Oxford English Dictionary (1989)
# Online Etymology Dictionary: "'deciding by one's own discretion,' from L. arbitrarius, from arbiter (see arbiter). The original meaning gradually to mean ‘capricious’ (1646) and ‘despotic’ (1642).”
# Curtis, Thomas. The London Encyclopaedia, page 565 (1829): “Arbitrary, and the words more immediately connected with it, signify that the decision of the arbiter is made in consequence of his own uncontrolled will, or in consequence of reasons which do not appear.”

[[Category: Law]]
[[Category: Philosophy]]

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