# progression

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**Primes in arithmetic progression**— In number theory, the phrase primes in arithmetic progression refers to at least three prime numbers that are consecutive terms in an arithmetic progression, for example the primes (3, 7, 11) (it does not matter that 5 is also prime). There are… …102

**Circle progression**— Submediant in chain of fifths[1]   …103

**Men's 100 metres world record progression**— The first record in the 100 metres for men (athletics) was recognised by the International Amateur Athletics Federation, now known as the International Association of Athletics Federations, in 1912. The record now is 9.58 seconds which was run by …104

**Mile run world record progression**— The world record in the mile run is the best mark set by a male or female runner in the middle distance track and field event. The IAAF is the official body which oversees the records. Hicham El Guerrouj is the current men s record holder with… …105

**Geometric progression**— In mathematics, a geometric progression, also known as a geometric sequence, is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed non zero number called the common ratio . For example, the… …106

**Backdoor progression**— Backdoor ii V in C: ii ♭VII7 I   …107

**Marathon world record progression**— This list is a chronological progression of record times for the marathon. World records in the marathon are now ratified by the International Association of Athletics Federations, the international governing body for the sport of athletics.… …108

**Men's high jump indoor world record progression**— Main article: Athletics record progressions The Men s high jump indoor world record progression starting in 1893 and ratified by IAAF from 1987 [1] Contents 1 Record Progression 2 References 3 …109

**Omnibus progression**— Four part omnibus progression in G. Major chords are indicated by CAPITAL and minor chords by lower case letters. The bass line descends chromatically for an octave, whereas the upper voices are alternately oblique (maintaining a note) or move in …110

**Men's 400 metres hurdles world record progression**— The first world record in the men s 400 metres hurdles was recognised by the International Association of Athletics Federations in 1912. That inaugural record was the performance by Charles Bacon at the 1908 Olympics.[1] Three athletes, all from… …