# mu

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## mu

(μ)
1. The 12th letter of the Greek alphabet, used in stellar nomenclature usually to designate the 12th-brightest star in a constellation or sometimes to indicate a star's position in a group.
2. Symbol for proper motion.

## Mu

(character)
(Greek letter).

1. <unit> /micro/ prefix denoting division by 10^6, e.g. mu m (micrometre, a millionth part of a metre). Sometimes written as a 'u', the ASCII character nearest in appearance.

2. <mathematics> /myoo/ In the theory of functions, mu x . E denotes the least value of x for which E = x, i.e. the least fixed point of the function \ x . E. The recursive function mu f . H f satisfies (and is defined by) the equation

mu f . H f = H (mu f . H f)

An alternative notation for the same function is

fix H = H (fix H)

See fixed point combinator.

3. <database> multiple value.

## mu

(networking)
The country code for Mauritius.

## mu

(philosophy)
/moo/ The correct answer to the classic trick question "Have you stopped beating your wife yet?". Assuming that you have no wife or you have never beaten your wife, the answer "yes" is wrong because it implies that you used to beat your wife and then stopped, but "no" is worse because it suggests that you have one and are still beating her. According to various Discordians and Douglas Hofstadter the correct answer is usually "mu", a Japanese word alleged to mean "Your question cannot be answered because it depends on incorrect assumptions".

Hackers tend to be sensitive to logical inadequacies in language, and many have adopted this suggestion with enthusiasm. The word "mu" is actually from Chinese, meaning "nothing"; it is used in mainstream Japanese in that sense, but native speakers do not recognise the Discordian question-denying use. It almost certainly derives from overgeneralisation of the answer in the following well-known Rinzei Zen teaching riddle:

A monk asked Joshu, "Does a dog have the Buddha nature?" Joshu retorted, "Mu!"

[Douglas Hofstadter, "G?del, Escher, Bach: An Eternal Golden Braid"].
References in periodicals archive ?
We consider a cognitive radio system with PUs (TX, RX) and m CRs (MUE) for simulation.
The prosecution also alleged on the same date and venue, Mue had the national flag on his car without authority from Ministry of Interior.
Similarly, the SINR at MUE m associated with MBS M can be expressed as
class="MsoNormalThis is not the first time Mr Mue has found himself in soup for acting in a dramatic manner deemed offensive.
On Thursday, Mue said files will be scrutinised to establish the depth of fraud in purchase of maize and distribution of fertiliser.
(a) Interference from FBSs to the MUE: Under the expected cochannel femtocell deployment, transmission of femtocells may cause interference to the ongoing transmission of the macrocell using the same slot.
EACC deputy director in charge of North Rift Jackson Mue on Tuesday said 70 per cent of the Sh2 billion was transacted in the six depots.
Kenya Human Rights Commission director George Kegoro, his deputy director Davis Malombe and International Commission of Jurists chairman Njonjo Mue led the demos from Freedom Corner in Uhuru Park.
Cette date referentielle est presentee comme la consolidation du processus du paysage mediatique algerien (PMA), portant haut l'etendard du combat liberateur par Resistance, ne le 22 octobre 1955, davantage affermi par les plumes des temps des batisseurs et assurant en pionnier la mue democratique.
EACC deputy director in charge of North Rift Jackson Mue, on Tuesday said 70 per cent of the Sh2 billion lost was transacted in the six depots.

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