New posts in pigeonhole-principle

Combinatorics Pigeonhole problem

combinatorics discrete-mathematics pigeonhole-principle

Proving the same sum of two subsequences by Pigeonhole Principle?

sequences-and-series combinatorics pigeonhole-principle

Induction to prove that a set of $n+1$ integers between $1$ and $2n$ has at least one number which divides another number in the set [duplicate]

induction pigeonhole-principle

Combinatorics proof (any set of 16 numbers from 1 to 100 contains repeated sums)

combinatorics pigeonhole-principle

What does the pigeonhole principle have to do with graph theory?

graph-theory pigeonhole-principle

Any partition of $\{1,2,\ldots,100\}$ into seven subsets yields a subset with numbers $a,b,c,d$ such that $a+b=c+d$. [closed]

combinatorics functions elementary-set-theory problem-solving pigeonhole-principle

Prove that the product of primes in some subset of $n+1$ integers is a perfect square.

elementary-number-theory pigeonhole-principle

For any unbounded set of real numbers, is there a subset which almost coincides with a uniformly spread out set of points an infinite amount of times?

real-analysis sequences-and-series problem-solving real-numbers pigeonhole-principle

sum of one hundred numbers

contest-math recreational-mathematics pigeonhole-principle

501 distinct coprime integers between 1 and 1000?

combinatorics pigeonhole-principle

Pigeonhole Principle - Roulette Wheel

inequality pigeonhole-principle

Any $B \subset \{10,11,...,99\}$, with $|B| =10$ has two subsets such that $\sum_{a \in B_1} a = \sum_{b \in B_2} b$

combinatorics discrete-mathematics pigeonhole-principle

Hint for problem on $4 \times 7$-chessboard problem related to pigeonhole principle

combinatorics discrete-mathematics puzzle pigeonhole-principle

Prove that 2 students live exactly five houses apart if

pigeonhole-principle

Pigeonhole principle: Five points on an orange

discrete-mathematics pigeonhole-principle

Show that if four distinct integers are chosen between $1$ and $60$ inclusive, some two of them must differ by at most $19$

combinatorics discrete-mathematics pigeonhole-principle

Show me some pigeonhole problems [closed]

combinatorics problem-solving big-list pigeonhole-principle

Prove two numbers of a set will evenly divide the other

pigeonhole-principle

Graph Theory Pigeonhole Principle Question [duplicate]

combinatorics graph-theory pigeonhole-principle

Pigeonhole principle: prove that any set of $n+1$ integers from $\{1,2,...,2n\}$ has two consecutive integers differ by one.

combinatorics pigeonhole-principle