Newbetuts
.
New posts in pigeonhole-principle
Pigeonhole principle: Coloring $11$ points of a $5\times 5$ square grid
combinatorics
discrete-mathematics
contest-math
pigeonhole-principle
coloring
Pigeonhole Principle: Among any seven integers, there must be two whose sum or difference is divisible by $10$
combinatorics
discrete-mathematics
pigeonhole-principle
Nonconstant polynomials have a composite value in a UFD with finitely many units
ring-theory
pigeonhole-principle
unique-factorization-domains
Combi Problem - Proving Existence of a row
combinatorics
contest-math
pigeonhole-principle
combinatorial-proofs
Russia (2000) contest:Prove the existence of a pair of rows and columns with intersections differently coloured
combinatorics
contest-math
pigeonhole-principle
Some three consecutive numbers sum to at least $32$
discrete-mathematics
pigeonhole-principle
Showing there is a node in the graph with only one edge
combinatorics
graph-theory
pigeonhole-principle
Given 7 arbitrary integers,sum of 4 of them is divisible by 4
divisibility
pigeonhole-principle
Elementary number theory in sets
combinatorics
elementary-number-theory
discrete-mathematics
divisibility
pigeonhole-principle
Prove that $ax^2 + by^2 \equiv c \pmod{p}$ has integer solutions
number-theory
contest-math
pigeonhole-principle
Pigeonhole Principle Question: Given any 5 points inside a square of side length 2, there is always a pair whose distance apart is at most $\sqrt2$
combinatorics
pigeonhole-principle
Showing there is a node in the graph with one and only one edge
combinatorics
graph-theory
pigeonhole-principle
Proof that Fibonacci Sequence modulo m is periodic? [duplicate]
elementary-number-theory
proof-verification
fibonacci-numbers
pigeonhole-principle
Show that given seven real numbers, it is always possible take two of them, such that $\left\vert\frac{a-b}{1+ab}\right\vert<\frac{1}{\sqrt{3}}$
number-theory
pigeonhole-principle
The pigeonhole principle - how to solve questions like that?
summation
pigeonhole-principle
Jessica the Combinatorics Student, part 2
combinatorics
pigeonhole-principle
Prove a subset from 1000 points contains one point that is strictly larger than the other one
combinatorics
pigeonhole-principle
Combinatorics problem (Pigeonhole principle).
combinatorics
pigeonhole-principle
A Pigeonhole-Principle from IMO Shortlist.
combinatorics
elementary-number-theory
contest-math
pigeonhole-principle
Proving that among any $2n - 1$ integers, there's always a subset of $n$ which sum to a multiple of $n$
elementary-number-theory
modular-arithmetic
pigeonhole-principle
faq
Prev
Next