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Top Questions
13
votes
Union of sets having $\binom{n - 1}{2}$ elements with each two of them having $n - 2$ common elements has cardinality of at least $\binom{n}{3}$.
combinatorics
combinations
extremal-combinatorics
asked Mar 8, 2022 at 18:41
math.stackexchange.com
9
votes
$\{x^2\} = \{x\}^2$, how many solutions in interval $[1, 10]$
graphing-functions
integers
ceiling-and-floor-functions
fractional-part
asked Nov 5, 2021 at 7:48
math.stackexchange.com
8
votes
Number of points chosen form a polygon to have no isosceles and equilateral triangles.
combinatorics
geometry
induction
polygons
combinatorial-geometry
asked Feb 4, 2021 at 9:21
math.stackexchange.com
Top Answers
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