12,618 reputation
21760
bio website
location Monkey Island, OK
age
visits member for 2 years, 4 months
seen 6 hours 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.


16h
revised $H\trianglelefteq A$ and $K\trianglelefteq B\Rightarrow HK\trianglelefteq AB$?
added 19 characters in body
17h
revised What will be nth term of the following sequence?
deleted 30 characters in body
Oct
15
revised sum of the numbers of both subsets are equal.
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Oct
14
revised Sets of size at least $k$ with intersection of size at most $1$ cool problem.
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Oct
4
revised colored grid with no repeated rows problem
added 882 characters in body
Oct
4
revised colored grid with no repeated rows problem
added 67 characters in body
Oct
2
revised When does $n$ divide $\binom{n}{i}$ for all $i$?
added 62 characters in body
Oct
2
revised When does $n$ divide $\binom{n}{i}$ for all $i$?
added 19 characters in body
Oct
1
revised using multinomial theorem to expand ($2x -y + 3z)^3$
added 27 characters in body
Sep
30
revised In how many ways can the word ELEEMOSYNARY be arranged.
added 290 characters in body
Sep
28
revised Difficult probability problem
edited body
Sep
28
revised Given a node $x$ on a weighted graph, what algorithms are there for finding which node has the shortest path to $x$ from a given list of nodes?
added 5 characters in body
Sep
23
revised Prove that there exists a numbered socket such that for every orientation, two equal numbers coincide
deleted 83 characters in body
Sep
20
revised Is this calculus proof I came up with sound?
added 19 characters in body
Sep
20
revised What is the smallest natural number n?
deleted 36 characters in body
Sep
18
revised Truth table and the meaning of $\oplus$ in propositional logic
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Aug
29
revised recursive automata, or recursion mod 2.
deleted 274 characters in body
Aug
27
revised every Abelian group is a converse lagrange theorem group
added 87 characters in body
Aug
27
revised every Abelian group is a converse lagrange theorem group
edited title
Aug
27
revised every Abelian group is a converse lagrange theorem group
edited body