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PlanetMath Encyclopedia
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1 - 12 entries
2 - 22 entries
3 - 10 entries
$3$-cell (in 2-category) owned by bci1
3D projections of 4D-space (in 4D-animated representation) owned by bci1
proof that 3 is the only prime perfect totient number owned by PrimeFan
3-manifold owned by juanman
3n+1 problem (=Collatz problem) owned by akrowne
3rd quadrant (in quadrant) owned by Mathprof
3 sides equal trapezium (in isosceles trapezoid) owned by Wkbj79
3-sides-equal trapezium (in isosceles trapezoid) owned by Wkbj79
3 sides equal trapezoid (in isosceles trapezoid) owned by Wkbj79
3-sides-equal trapezoid (in isosceles trapezoid) owned by Wkbj79
4 - 6 entries
5 - 4 entries
6 - 2 entries
9 - 2 entries
A - 1104 entries
B - 678 entries
C - 2221 entries
D - 918 entries
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F - 821 entries
G - 659 entries
H - 718 entries
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K - 232 entries
L - 950 entries
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O - 430 entries
P - 1432 entries
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R - 947 entries
S - 1946 entries
T - 816 entries
U - 362 entries
V - 250 entries
W - 318 entries
X - 8 entries
Y - 22 entries
Z - 97 entries
8278 entries total.
14429 concepts total.
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