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daw
  • Member for 5 years, 3 months
  • Last seen this week
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Posts
54
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80
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20
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51
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15
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45
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11
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37
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Top posts
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24
Mishustin's circle problem
Nov 27, 2023
20
Prime number snake (2)
Jan 26, 2020
19
What's in my pocket?
Apr 8, 2020
18
Knights attacking exactly three knights
Mar 10, 2020
18
Knights and knaves not on an island
Jun 20, 2023
16
What is the symbol on the face opposite ● (solid black circle)?
Dec 9, 2024
13
The Twelve Apostles
Aug 1, 2023
11
Queens attacking exactly four queens
Mar 6, 2020
10
Alice, Bob and Charlie know the sum, product and the difference between two numbers
May 19, 2020
8
The Era Of The Ear
Apr 26, 2023
Top network posts
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29
Is every Hilbert space separable?
27
Inner product on $C(\mathbb R)$
21
Orthogonal Projection of $ z $ onto the Affine set $ \left\{ x \mid A x = b \right\} $
20
Is KKT conditions necessary and sufficient for any convex problems?
15
Ensuring that a symmetric matrix with nonnegative elements is positive semidefinite