16,899 reputation
21866
bio website
location Mexico City
age
visits member for 2 years, 6 months
seen 9 mins ago

Hello, I am a freshman at The National Autonomous University of Mexico (UNAM).

My interests are contest problems,elementary number theory, combinatorics, graph theory, linear algebra, group theory, abstract algebra and I have been meaning to learn category theory and matroids.


23m
asked Coloring $\mathbb R^n$ with $n$ colors always gives us a color with all distances.
31m
revised Combinatorial Geometry Problem
added 122 characters in body
34m
answered Given a set of integers and operators, find if number is obtainable
55m
revised Combinatorial Geometry Problem
deleted 274 characters in body
2h
answered Combinatorial Geometry Problem
3h
comment Combinatorial Geometry Problem
An arrangement with more pairs would involve one point being at distance $\sqrt2$ or more from all other points.
3h
comment Combinatorial Geometry Problem
$12$ is possible, take an equilateral triangle of length 1.5 and for each vertex add 1 point really close to it, you get 12 pairs.
4h
comment Combinatorial Geometry Problem
So then the answer is $9$?
4h
comment Conditionally combining vanilla and chocolate ice scream scoops
well, we proved $f(n)=f(n-1)+f(n-2)$ for all $n$, that's the recurrence ficonaccis follow by definition.
4h
comment Conditionally combining vanilla and chocolate ice scream scoops
Because it has the first initial values and it follows the same recurrence-
4h
revised Conditionally combining vanilla and chocolate ice scream scoops
edited body
4h
comment Conditionally combining vanilla and chocolate ice scream scoops
vcv,vvc,cvc,cvv,vvv
5h
answered Conditionally combining vanilla and chocolate ice scream scoops
5h
answered Four balls with differnt colors in a box, how many times do I need to pick to see all four colors?
6h
comment Four balls with differnt colors in a box, how many times do I need to pick to see all four colors?
lol, I had assumed that part.
6h
comment Four balls with differnt colors in a box, how many times do I need to pick to see all four colors?
mathematical boxes are always non-transparent for future reference
7h
revised Is it true $f^{-1} (B^C)=(f^{-1}(B))^C$? Is it true $f (B^C)=(f(B))^C$?
added 79 characters in body
8h
revised Is it true $f^{-1} (B^C)=(f^{-1}(B))^C$? Is it true $f (B^C)=(f(B))^C$?
added 79 characters in body
8h
answered Is it true $f^{-1} (B^C)=(f^{-1}(B))^C$? Is it true $f (B^C)=(f(B))^C$?
10h
comment Question around the following relation: $T(n,1) = n$, for a positive integer $n$, and for all $k\geq 1,\ T(n,k+1)=n^{T(n,k)}$.
I did everything again.