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The generating identity of Cauchy-Schwarz-Bunyakovsky inequality
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1
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Article
Thébault's theorem
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6
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Article
The conics of Lucas' configuration
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14
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Article
In Dreiecken einbeschriebene Dreiecke
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18
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Article
Erdös-Mordell-type inequalities
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23
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Article
The feet of the altitudes of a simplex
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25
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Article
On summing to arbitrary real numbers
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30
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Article
An elementary approach to the location of the maximum Stirling number(s) of the second kind
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35
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Article
Über eine bemerkenswerte Eigenschaft von Dezimalbrüchen und gewissen anderen Systembrüchen
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42
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Rubrique
Aufgaben
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58
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Rubrique
Bücher und Computersoftware
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63
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Article
Fibonacci numbers at most one away from a perfect power
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65
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Article
On the Archimedean or semiregular polyhedra
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76
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Article
On maximum area polygons in a planar point set
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88
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Article
A simple solution to Ulam's liar game with one lie
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97
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Rubrique
Aufgaben
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102
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Rubrique
Bücher und Computersoftware
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107
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Article
Euclid, Calkin & Wilf : playing with rationals
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109
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Article
The diameter of the circumcircle of a Heron triangle
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118
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Article
Mean value theorems for differences
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122
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Article
On the Miquel point of simplices
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126
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Article
Crossed ladders and power means
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137
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Article
Flächen mit lauter Nabelpunkten
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141
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Rubrique
Aufgaben
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145
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Rubrique
Bücher und Computersoftware
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150
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Article
Catalan numbers, primes, and twin primes
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153
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Article
A new line associated with the triangle
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165
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Article
Géométrie plane : une axiomatique centrée sur la distance
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173
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Article
An interesting consequence of the Heisenberg construction
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184
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Rubrique
Aufgaben
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189
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Rubrique
Bücher und Computersoftware
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194
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